<?xml version="1.0" encoding="US-ASCII" standalone="no"?>
    <!-- Field: Doc-Info; Name: Generator; Value: GoFiler Complete; Version: 6.5a -->
    <!-- Field: Doc-Info; Name: VendorURI; Value: https://www.novaworks.com -->
    <!-- Field: Doc-Info; Name: Status; Value: 0x00000000 -->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrli="http://www.xbrl.org/2003/instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#Cover" roleURI="http://mdb.com/role/Cover" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ConsolidatedBalanceSheets" roleURI="http://mdb.com/role/ConsolidatedBalanceSheets" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ConsolidatedBalanceSheetsParenthetical" roleURI="http://mdb.com/role/ConsolidatedBalanceSheetsParenthetical" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#StatementsOfOperations" roleURI="http://mdb.com/role/StatementsOfOperations" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#StatementsOfOperationsParenthetical" roleURI="http://mdb.com/role/StatementsOfOperationsParenthetical" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#StatementsOfChangesInEquity" roleURI="http://mdb.com/role/StatementsOfChangesInEquity" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#StatementsOfCashFlows" roleURI="http://mdb.com/role/StatementsOfCashFlows" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#StatementsOfCashFlowsSupplementalDisclosures" roleURI="http://mdb.com/role/StatementsOfCashFlowsSupplementalDisclosures" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#CybersecurityRiskManagementAndStrategyDisclosure" roleURI="http://xbrl.sec.gov/cyd/role/CybersecurityRiskManagementAndStrategyDisclosure" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#MaterialCybersecurityIncidentDisclosure" roleURI="http://xbrl.sec.gov/cyd/role/MaterialCybersecurityIncidentDisclosure" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#OrganizationAndDescriptionOfBusiness" roleURI="http://mdb.com/role/OrganizationAndDescriptionOfBusiness" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#SummaryOfSignificantAccountingPolicies" roleURI="http://mdb.com/role/SummaryOfSignificantAccountingPolicies" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#SegmentReporting" roleURI="http://mdb.com/role/SegmentReporting" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#EquityAndNon-controllingInterests" roleURI="http://mdb.com/role/EquityAndNon-controllingInterests" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#Deconsolidation" roleURI="http://mdb.com/role/Deconsolidation" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#EquityMethodInvestment" roleURI="http://mdb.com/role/EquityMethodInvestment" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#Stock-basedCompensation" roleURI="http://mdb.com/role/Stock-basedCompensation" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#EarningsPerShare" roleURI="http://mdb.com/role/EarningsPerShare" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#RelatedPartyTransactions" roleURI="http://mdb.com/role/RelatedPartyTransactions" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#CommitmentsAndContingencies" roleURI="http://mdb.com/role/CommitmentsAndContingencies" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#EmployeeBenefitPlans" roleURI="http://mdb.com/role/EmployeeBenefitPlans" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ExclusiveLicenseAgreementMdbMinnesotaOne" roleURI="http://mdb.com/role/ExclusiveLicenseAgreementMdbMinnesotaOne" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#Leases" roleURI="http://mdb.com/role/Leases" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#IncomeTaxes" roleURI="http://mdb.com/role/IncomeTaxes" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#SubsequentEvents" roleURI="http://mdb.com/role/SubsequentEvents" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#SummaryOfSignificantAccountingPoliciesPolicies" roleURI="http://mdb.com/role/SummaryOfSignificantAccountingPoliciesPolicies" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#SummaryOfSignificantAccountingPoliciesTables" roleURI="http://mdb.com/role/SummaryOfSignificantAccountingPoliciesTables" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#SegmentReportingTables" roleURI="http://mdb.com/role/SegmentReportingTables" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#EquityAndNon-controllingInterestsTables" roleURI="http://mdb.com/role/EquityAndNon-controllingInterestsTables" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#DeconsolidationTables" roleURI="http://mdb.com/role/DeconsolidationTables" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#EquityMethodInvestmentTables" roleURI="http://mdb.com/role/EquityMethodInvestmentTables" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#Stock-basedCompensationTables" roleURI="http://mdb.com/role/Stock-basedCompensationTables" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#EarningsPerShareTables" roleURI="http://mdb.com/role/EarningsPerShareTables" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#LeasesTables" roleURI="http://mdb.com/role/LeasesTables" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#IncomeTaxesTables" roleURI="http://mdb.com/role/IncomeTaxesTables" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#OrganizationAndDescriptionOfBusinessDetailsNarrative" roleURI="http://mdb.com/role/OrganizationAndDescriptionOfBusinessDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#SummaryOfSignificantAccountingPoliciesDetailsNarrative" roleURI="http://mdb.com/role/SummaryOfSignificantAccountingPoliciesDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfInvestmentSecuritiesBrokerDealerDetails" roleURI="http://mdb.com/role/ScheduleOfInvestmentSecuritiesBrokerDealerDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfInvestmentSecuritiesNon-brokerDealerDetails" roleURI="http://mdb.com/role/ScheduleOfInvestmentSecuritiesNon-brokerDealerDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfFairValueOfFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetails" roleURI="http://mdb.com/role/ScheduleOfFairValueOfFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfReconciliationOfFairValueMeasurementsWithinLevel3OfFairValueHierarchyDetails" roleURI="http://mdb.com/role/ScheduleOfReconciliationOfFairValueMeasurementsWithinLevel3OfFairValueHierarchyDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfSignificantUnobservableInputsRelatedToMaterialComponentsOfLevel3WarrantsDetails" roleURI="http://mdb.com/role/ScheduleOfSignificantUnobservableInputsRelatedToMaterialComponentsOfLevel3WarrantsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfEstimatedUsefulLivesOfPropertyAndEquipmentDetails" roleURI="http://mdb.com/role/ScheduleOfEstimatedUsefulLivesOfPropertyAndEquipmentDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfPropertyAndEquipmentDetails" roleURI="http://mdb.com/role/ScheduleOfPropertyAndEquipmentDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfChangesInDeferredRevenueDetails" roleURI="http://mdb.com/role/ScheduleOfChangesInDeferredRevenueDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#SummaryOfGrantsReceivableActivityDetails" roleURI="http://mdb.com/role/SummaryOfGrantsReceivableActivityDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfLong-livedAssetsAndTotalAssetsBySegmentDetails" roleURI="http://mdb.com/role/ScheduleOfLong-livedAssetsAndTotalAssetsBySegmentDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfStatementOfOperationBySegmentDetails" roleURI="http://mdb.com/role/ScheduleOfStatementOfOperationBySegmentDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#SegmentReportingDetailsNarrative" roleURI="http://mdb.com/role/SegmentReportingDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfEquityAndNon-controllingInterestsDetails" roleURI="http://mdb.com/role/ScheduleOfEquityAndNon-controllingInterestsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#EquityAndNon-controllingInterestsDetailsNarrative" roleURI="http://mdb.com/role/EquityAndNon-controllingInterestsDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#DeconsolidationDetailsNarrative" roleURI="http://mdb.com/role/DeconsolidationDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfConsolidatedBalanceSheetDetails" roleURI="http://mdb.com/role/ScheduleOfConsolidatedBalanceSheetDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfGainOnDeconsolidationDetails" roleURI="http://mdb.com/role/ScheduleOfGainOnDeconsolidationDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfEquityMethodInvestmentDetails" roleURI="http://mdb.com/role/ScheduleOfEquityMethodInvestmentDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#EquityMethodInvestmentDetailsNarrative" roleURI="http://mdb.com/role/EquityMethodInvestmentDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfRestrictedStockUnitActivityDetails" roleURI="http://mdb.com/role/ScheduleOfRestrictedStockUnitActivityDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfTime-basedStockOptionActivityDetails" roleURI="http://mdb.com/role/ScheduleOfTime-basedStockOptionActivityDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfMarket-basedStockOptionActivityDetails" roleURI="http://mdb.com/role/ScheduleOfMarket-basedStockOptionActivityDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#Stock-basedCompensationDetailsNarrative" roleURI="http://mdb.com/role/Stock-basedCompensationDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfBasicAndFullyDilutedDetails" roleURI="http://mdb.com/role/ScheduleOfBasicAndFullyDilutedDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#EarningsPerShareDetailsNarrative" roleURI="http://mdb.com/role/EarningsPerShareDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#RelatedPartyTransactionsDetailsNarrative" roleURI="http://mdb.com/role/RelatedPartyTransactionsDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#CommitmentsAndContingenciesDetailsNarrative" roleURI="http://mdb.com/role/CommitmentsAndContingenciesDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#EmployeeBenefitPlansDetailsNarrative" roleURI="http://mdb.com/role/EmployeeBenefitPlansDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ExclusiveLicenseAgreementMdbMinnesotaOneDetailsNarrative" roleURI="http://mdb.com/role/ExclusiveLicenseAgreementMdbMinnesotaOneDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfOperatingLeaseCostDetails" roleURI="http://mdb.com/role/ScheduleOfOperatingLeaseCostDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfFuturePaymentsDueUnderOperatingLeaseDetails" roleURI="http://mdb.com/role/ScheduleOfFuturePaymentsDueUnderOperatingLeaseDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#LeasesDetailsNarrative" roleURI="http://mdb.com/role/LeasesDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfIncomeTaxesExpensesBenefitDetails" roleURI="http://mdb.com/role/ScheduleOfIncomeTaxesExpensesBenefitDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#ScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" roleURI="http://mdb.com/role/ScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#IncomeTaxesDetailsNarrative" roleURI="http://mdb.com/role/IncomeTaxesDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="mdbh-20251231.xsd#SubsequentEventsDetailsNarrative" roleURI="http://mdb.com/role/SubsequentEventsDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#PvpDisclosure" roleURI="http://xbrl.sec.gov/ecd/role/PvpDisclosure" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#PvpDisclosureWithAdditionalMeasures" roleURI="http://xbrl.sec.gov/ecd/role/PvpDisclosureWithAdditionalMeasures" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#PvpTable" roleURI="http://xbrl.sec.gov/ecd/role/PvpTable" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#PvpAdjustmentsToCompensation" roleURI="http://xbrl.sec.gov/ecd/role/PvpAdjustmentsToCompensation" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#TabularListsByExecutiveCategory" roleURI="http://xbrl.sec.gov/ecd/role/TabularListsByExecutiveCategory" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#TabularListMeasures" roleURI="http://xbrl.sec.gov/ecd/role/TabularListMeasures" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#PvpMeasures" roleURI="http://xbrl.sec.gov/ecd/role/PvpMeasures" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#PvpPensionBenefitsAdjustments" roleURI="http://xbrl.sec.gov/ecd/role/PvpPensionBenefitsAdjustments" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ErrCompDisclosure" roleURI="http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ForgoneRecoveries" roleURI="http://xbrl.sec.gov/ecd/role/ForgoneRecoveries" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#OutstandingRecoveries" roleURI="http://xbrl.sec.gov/ecd/role/OutstandingRecoveries" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#AwardTimingDisclosure" roleURI="http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#AwardsCloseToMnpiDisc" roleURI="http://xbrl.sec.gov/ecd/role/AwardsCloseToMnpiDisc" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#InsiderTradingArrangements" roleURI="http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#InsiderTradingArrangemenstByInd" roleURI="http://xbrl.sec.gov/ecd/role/InsiderTradingArrangementsByInd" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#InsiderTradingPoliciesProc" roleURI="http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc" />
    <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#Defaults" roleURI="http://xbrl.sec.gov/ecd/role/Defaults" />
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/Cover" xlink:title="00000001 - Document - Cover">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CoverAbstract" xlink:label="loc_deiCoverAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_us-gaapStatementTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable" xlink:to="loc_us-gaapStatementLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaapStatementClassOfStockAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable" xlink:to="loc_us-gaapStatementClassOfStockAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaapClassOfStockDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementClassOfStockAxis" xlink:to="loc_us-gaapClassOfStockDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaapCommonClassAMember" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockDomain" xlink:to="loc_us-gaapCommonClassAMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaapCommonClassBMember" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockDomain" xlink:to="loc_us-gaapCommonClassBMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType" xlink:label="loc_deiDocumentType" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiDocumentType" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag" xlink:label="loc_deiAmendmentFlag" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiAmendmentFlag" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentDescription" xlink:label="loc_deiAmendmentDescription" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiAmendmentDescription" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentRegistrationStatement" xlink:label="loc_deiDocumentRegistrationStatement" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiDocumentRegistrationStatement" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentAnnualReport" xlink:label="loc_deiDocumentAnnualReport" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiDocumentAnnualReport" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentQuarterlyReport" xlink:label="loc_deiDocumentQuarterlyReport" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiDocumentQuarterlyReport" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentTransitionReport" xlink:label="loc_deiDocumentTransitionReport" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiDocumentTransitionReport" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentShellCompanyReport" xlink:label="loc_deiDocumentShellCompanyReport" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiDocumentShellCompanyReport" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentShellCompanyEventDate" xlink:label="loc_deiDocumentShellCompanyEventDate" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiDocumentShellCompanyEventDate" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodStartDate" xlink:label="loc_deiDocumentPeriodStartDate" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiDocumentPeriodStartDate" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_deiDocumentPeriodEndDate" />
      <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiDocumentPeriodEndDate" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_deiDocumentFiscalPeriodFocus" />
      <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiDocumentFiscalPeriodFocus" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_deiDocumentFiscalYearFocus" />
      <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiDocumentFiscalYearFocus" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_deiCurrentFiscalYearEndDate" />
      <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiCurrentFiscalYearEndDate" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber" xlink:label="loc_deiEntityFileNumber" />
      <link:presentationArc order="140" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityFileNumber" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName" xlink:label="loc_deiEntityRegistrantName" />
      <link:presentationArc order="150" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityRegistrantName" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey" xlink:label="loc_deiEntityCentralIndexKey" />
      <link:presentationArc order="160" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityCentralIndexKey" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityPrimarySicNumber" xlink:label="loc_deiEntityPrimarySicNumber" />
      <link:presentationArc order="170" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityPrimarySicNumber" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityTaxIdentificationNumber" xlink:label="loc_deiEntityTaxIdentificationNumber" />
      <link:presentationArc order="180" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityTaxIdentificationNumber" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="loc_deiEntityIncorporationStateCountryCode" />
      <link:presentationArc order="190" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityIncorporationStateCountryCode" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1" xlink:label="loc_deiEntityAddressAddressLine1" />
      <link:presentationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityAddressAddressLine1" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine2" xlink:label="loc_deiEntityAddressAddressLine2" />
      <link:presentationArc order="210" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityAddressAddressLine2" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine3" xlink:label="loc_deiEntityAddressAddressLine3" />
      <link:presentationArc order="220" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityAddressAddressLine3" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown" xlink:label="loc_deiEntityAddressCityOrTown" />
      <link:presentationArc order="230" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityAddressCityOrTown" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressStateOrProvince" xlink:label="loc_deiEntityAddressStateOrProvince" />
      <link:presentationArc order="240" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityAddressStateOrProvince" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCountry" xlink:label="loc_deiEntityAddressCountry" />
      <link:presentationArc order="250" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityAddressCountry" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode" xlink:label="loc_deiEntityAddressPostalZipCode" />
      <link:presentationArc order="260" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityAddressPostalZipCode" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CountryRegion" xlink:label="loc_deiCountryRegion" />
      <link:presentationArc order="270" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiCountryRegion" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode" xlink:label="loc_deiCityAreaCode" />
      <link:presentationArc order="280" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiCityAreaCode" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber" xlink:label="loc_deiLocalPhoneNumber" />
      <link:presentationArc order="290" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiLocalPhoneNumber" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Extension" xlink:label="loc_deiExtension" />
      <link:presentationArc order="300" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiExtension" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_WrittenCommunications" xlink:label="loc_deiWrittenCommunications" />
      <link:presentationArc order="310" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiWrittenCommunications" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SolicitingMaterial" xlink:label="loc_deiSolicitingMaterial" />
      <link:presentationArc order="320" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiSolicitingMaterial" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementTenderOffer" xlink:label="loc_deiPreCommencementTenderOffer" />
      <link:presentationArc order="330" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiPreCommencementTenderOffer" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementIssuerTenderOffer" xlink:label="loc_deiPreCommencementIssuerTenderOffer" />
      <link:presentationArc order="340" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiPreCommencementIssuerTenderOffer" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12bTitle" xlink:label="loc_deiSecurity12bTitle" />
      <link:presentationArc order="350" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiSecurity12bTitle" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_NoTradingSymbolFlag" xlink:label="loc_deiNoTradingSymbolFlag" />
      <link:presentationArc order="360" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiNoTradingSymbolFlag" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_TradingSymbol" xlink:label="loc_deiTradingSymbol" />
      <link:presentationArc order="370" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiTradingSymbol" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityExchangeName" xlink:label="loc_deiSecurityExchangeName" />
      <link:presentationArc order="380" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiSecurityExchangeName" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12gTitle" xlink:label="loc_deiSecurity12gTitle" />
      <link:presentationArc order="390" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiSecurity12gTitle" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityReportingObligation" xlink:label="loc_deiSecurityReportingObligation" />
      <link:presentationArc order="400" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiSecurityReportingObligation" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AnnualInformationForm" xlink:label="loc_deiAnnualInformationForm" />
      <link:presentationArc order="410" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiAnnualInformationForm" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditedAnnualFinancialStatements" xlink:label="loc_deiAuditedAnnualFinancialStatements" />
      <link:presentationArc order="420" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiAuditedAnnualFinancialStatements" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="loc_deiEntityWellKnownSeasonedIssuer" />
      <link:presentationArc order="430" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityWellKnownSeasonedIssuer" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityVoluntaryFilers" xlink:label="loc_deiEntityVoluntaryFilers" />
      <link:presentationArc order="440" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityVoluntaryFilers" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_deiEntityCurrentReportingStatus" />
      <link:presentationArc order="450" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityCurrentReportingStatus" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityInteractiveDataCurrent" xlink:label="loc_deiEntityInteractiveDataCurrent" />
      <link:presentationArc order="460" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityInteractiveDataCurrent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFilerCategory" xlink:label="loc_deiEntityFilerCategory" />
      <link:presentationArc order="470" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityFilerCategory" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntitySmallBusiness" xlink:label="loc_deiEntitySmallBusiness" />
      <link:presentationArc order="480" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntitySmallBusiness" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany" xlink:label="loc_deiEntityEmergingGrowthCompany" />
      <link:presentationArc order="490" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityEmergingGrowthCompany" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityExTransitionPeriod" xlink:label="loc_deiEntityExTransitionPeriod" />
      <link:presentationArc order="500" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityExTransitionPeriod" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentAccountingStandard" xlink:label="loc_deiDocumentAccountingStandard" />
      <link:presentationArc order="510" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiDocumentAccountingStandard" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_OtherReportingStandardItemNumber" xlink:label="loc_deiOtherReportingStandardItemNumber" />
      <link:presentationArc order="520" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiOtherReportingStandardItemNumber" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityShellCompany" xlink:label="loc_deiEntityShellCompany" />
      <link:presentationArc order="530" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityShellCompany" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityPublicFloat" xlink:label="loc_deiEntityPublicFloat" />
      <link:presentationArc order="540" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityPublicFloat" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityBankruptcyProceedingsReportingCurrent" xlink:label="loc_deiEntityBankruptcyProceedingsReportingCurrent" />
      <link:presentationArc order="550" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityBankruptcyProceedingsReportingCurrent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_deiEntityCommonStockSharesOutstanding" />
      <link:presentationArc order="560" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiEntityCommonStockSharesOutstanding" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentsIncorporatedByReferenceTextBlock" xlink:label="loc_deiDocumentsIncorporatedByReferenceTextBlock" />
      <link:presentationArc order="570" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiDocumentsIncorporatedByReferenceTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_IcfrAuditorAttestationFlag" xlink:label="loc_deiIcfrAuditorAttestationFlag" />
      <link:presentationArc order="580" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiIcfrAuditorAttestationFlag" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFinStmtErrorCorrectionFlag" xlink:label="loc_deiDocumentFinStmtErrorCorrectionFlag" />
      <link:presentationArc order="590" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiDocumentFinStmtErrorCorrectionFlag" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorName" xlink:label="loc_deiAuditorName" />
      <link:presentationArc order="600" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiAuditorName" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorLocation" xlink:label="loc_deiAuditorLocation" />
      <link:presentationArc order="610" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiAuditorLocation" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorFirmId" xlink:label="loc_deiAuditorFirmId" />
      <link:presentationArc order="620" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiAuditorFirmId" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorOpinionTextBlock" xlink:label="loc_deiAuditorOpinionTextBlock" />
      <link:presentationArc order="630" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_deiAuditorOpinionTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ConsolidatedBalanceSheets" xlink:title="00000002 - Statement -  Consolidated Balance Sheets">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaapStatementOfFinancialPositionAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfFinancialPositionAbstract" xlink:to="loc_us-gaapStatementTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable" xlink:to="loc_us-gaapStatementLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaapStatementClassOfStockAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable" xlink:to="loc_us-gaapStatementClassOfStockAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaapClassOfStockDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementClassOfStockAxis" xlink:to="loc_us-gaapClassOfStockDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaapCommonClassAMember" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockDomain" xlink:to="loc_us-gaapCommonClassAMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaapCommonClassBMember" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockDomain" xlink:to="loc_us-gaapCommonClassBMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaapAssetsAbstract" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapAssetsAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaapCashAndCashEquivalentsAtCarryingValue" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsAbstract" xlink:to="loc_us-gaapCashAndCashEquivalentsAtCarryingValue" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndSecuritiesSegregatedUnderSecuritiesExchangeCommissionRegulation" xlink:label="loc_us-gaapCashAndSecuritiesSegregatedUnderSecuritiesExchangeCommissionRegulation" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsAbstract" xlink:to="loc_us-gaapCashAndSecuritiesSegregatedUnderSecuritiesExchangeCommissionRegulation" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsReceivableNet" xlink:label="loc_us-gaapAccountsReceivableNet" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsAbstract" xlink:to="loc_us-gaapAccountsReceivableNet" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherReceivables" xlink:label="loc_us-gaapOtherReceivables" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsAbstract" xlink:to="loc_us-gaapOtherReceivables" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepositsAssets" xlink:label="loc_us-gaapDepositsAssets" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsAbstract" xlink:to="loc_us-gaapDepositsAssets" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsAbstract" xlink:to="loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_InvestmentSecuritiesAtFairValueHeldByLicensedBrokerDealer" xlink:label="loc_MDBHInvestmentSecuritiesAtFairValueHeldByLicensedBrokerDealer" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsAbstract" xlink:to="loc_MDBHInvestmentSecuritiesAtFairValueHeldByLicensedBrokerDealer" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_InvestmentSecuritiesAtFairValueHeldByNonlicensedBrokerDealer" xlink:label="loc_MDBHInvestmentSecuritiesAtFairValueHeldByNonlicensedBrokerDealer" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsAbstract" xlink:to="loc_MDBHInvestmentSecuritiesAtFairValueHeldByNonlicensedBrokerDealer" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestments" xlink:label="loc_us-gaapEquityMethodInvestments" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsAbstract" xlink:to="loc_us-gaapEquityMethodInvestments" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredCosts" xlink:label="loc_us-gaapDeferredCosts" />
      <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsAbstract" xlink:to="loc_us-gaapDeferredCosts" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaapPropertyPlantAndEquipmentNet" />
      <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsAbstract" xlink:to="loc_us-gaapPropertyPlantAndEquipmentNet" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaapOperatingLeaseRightOfUseAsset" />
      <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsAbstract" xlink:to="loc_us-gaapOperatingLeaseRightOfUseAsset" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets" xlink:label="loc_us-gaapAssets" />
      <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsAbstract" xlink:to="loc_us-gaapAssets" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaapLiabilitiesAndStockholdersEquityAbstract" />
      <link:presentationArc order="140" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapLiabilitiesAndStockholdersEquityAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAbstract" xlink:label="loc_us-gaapLiabilitiesAbstract" />
      <link:presentationArc order="150" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquityAbstract" xlink:to="loc_us-gaapLiabilitiesAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableCurrentAndNoncurrent" xlink:label="loc_us-gaapAccountsPayableCurrentAndNoncurrent" />
      <link:presentationArc order="160" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquityAbstract" xlink:to="loc_us-gaapAccountsPayableCurrentAndNoncurrent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedLiabilitiesCurrentAndNoncurrent" xlink:label="loc_us-gaapAccruedLiabilitiesCurrentAndNoncurrent" />
      <link:presentationArc order="170" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquityAbstract" xlink:to="loc_us-gaapAccruedLiabilitiesCurrentAndNoncurrent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilities" xlink:label="loc_us-gaapOtherLiabilities" />
      <link:presentationArc order="180" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquityAbstract" xlink:to="loc_us-gaapOtherLiabilities" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_PayablesToCustomersCurrentAndNonCurrent" xlink:label="loc_MDBHPayablesToCustomersCurrentAndNonCurrent" />
      <link:presentationArc order="190" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquityAbstract" xlink:to="loc_MDBHPayablesToCustomersCurrentAndNonCurrent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiability" xlink:label="loc_us-gaapOperatingLeaseLiability" />
      <link:presentationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquityAbstract" xlink:to="loc_us-gaapOperatingLeaseLiability" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaapLiabilities" />
      <link:presentationArc order="210" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquityAbstract" xlink:to="loc_us-gaapLiabilities" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaapCommitmentsAndContingencies" />
      <link:presentationArc order="220" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquityAbstract" xlink:to="loc_us-gaapCommitmentsAndContingencies" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_us-gaapStockholdersEquityAbstract" />
      <link:presentationArc order="230" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquityAbstract" xlink:to="loc_us-gaapStockholdersEquityAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockValue" xlink:label="loc_us-gaapPreferredStockValue" />
      <link:presentationArc order="240" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract" xlink:to="loc_us-gaapPreferredStockValue" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaapCommonStockValue" />
      <link:presentationArc order="250" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract" xlink:to="loc_us-gaapCommonStockValue" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaapAdditionalPaidInCapital" />
      <link:presentationArc order="260" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract" xlink:to="loc_us-gaapAdditionalPaidInCapital" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaapRetainedEarningsAccumulatedDeficit" />
      <link:presentationArc order="270" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract" xlink:to="loc_us-gaapRetainedEarningsAccumulatedDeficit" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaapStockholdersEquity" />
      <link:presentationArc order="280" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract" xlink:to="loc_us-gaapStockholdersEquity" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MinorityInterest" xlink:label="loc_us-gaapMinorityInterest" />
      <link:presentationArc order="290" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract" xlink:to="loc_us-gaapMinorityInterest" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaapStockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" />
      <link:presentationArc order="300" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract" xlink:to="loc_us-gaapStockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaapLiabilitiesAndStockholdersEquity" />
      <link:presentationArc order="310" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquityAbstract" xlink:to="loc_us-gaapLiabilitiesAndStockholdersEquity" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:title="00000003 - Statement -  Consolidated Balance Sheets (Parenthetical)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaapStatementOfFinancialPositionAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfFinancialPositionAbstract" xlink:to="loc_us-gaapStatementTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable" xlink:to="loc_us-gaapStatementLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaapStatementClassOfStockAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable" xlink:to="loc_us-gaapStatementClassOfStockAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaapClassOfStockDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementClassOfStockAxis" xlink:to="loc_us-gaapClassOfStockDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaapCommonClassAMember" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockDomain" xlink:to="loc_us-gaapCommonClassAMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaapCommonClassBMember" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockDomain" xlink:to="loc_us-gaapCommonClassBMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_us-gaapPreferredStockSharesAuthorized" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapPreferredStockSharesAuthorized" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockNoParValue" xlink:label="loc_us-gaapPreferredStockNoParValue" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapPreferredStockNoParValue" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="loc_us-gaapPreferredStockSharesIssued" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapPreferredStockSharesIssued" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="loc_us-gaapPreferredStockSharesOutstanding" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapPreferredStockSharesOutstanding" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaapCommonStockSharesAuthorized" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapCommonStockSharesAuthorized" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockNoParValue" xlink:label="loc_us-gaapCommonStockNoParValue" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapCommonStockNoParValue" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaapCommonStockSharesIssued" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapCommonStockSharesIssued" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaapCommonStockSharesOutstanding" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapCommonStockSharesOutstanding" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/StatementsOfOperations" xlink:title="00000004 - Statement - Consolidated Statements of Operations">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaapIncomeStatementAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeStatementAbstract" xlink:to="loc_us-gaapStatementTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable" xlink:to="loc_us-gaapStatementLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaapStatementClassOfStockAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable" xlink:to="loc_us-gaapStatementClassOfStockAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaapClassOfStockDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementClassOfStockAxis" xlink:to="loc_us-gaapClassOfStockDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaapCommonClassAMember" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockDomain" xlink:to="loc_us-gaapCommonClassAMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaapCommonClassBMember" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockDomain" xlink:to="loc_us-gaapCommonClassBMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLossAbstract" xlink:label="loc_us-gaapOperatingIncomeLossAbstract" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapOperatingIncomeLossAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_UnrealizedLossOnInvestmentSecuritiesNetFromLicensedBrokerDealerNotes1And2" xlink:label="loc_MDBHUnrealizedLossOnInvestmentSecuritiesNetFromLicensedBrokerDealerNotes1And2" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingIncomeLossAbstract" xlink:to="loc_MDBHUnrealizedLossOnInvestmentSecuritiesNetFromLicensedBrokerDealerNotes1And2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_UnrealizedGainOnInvestmentSecuritiesNetFromNonlicensedBrokerDealer" xlink:label="loc_MDBHUnrealizedGainOnInvestmentSecuritiesNetFromNonlicensedBrokerDealer" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingIncomeLossAbstract" xlink:to="loc_MDBHUnrealizedGainOnInvestmentSecuritiesNetFromNonlicensedBrokerDealer" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealizedInvestmentGainsLosses" xlink:label="loc_us-gaapRealizedInvestmentGainsLosses" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingIncomeLossAbstract" xlink:to="loc_us-gaapRealizedInvestmentGainsLosses" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FeeIncome" xlink:label="loc_us-gaapFeeIncome" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingIncomeLossAbstract" xlink:to="loc_us-gaapFeeIncome" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ImpairmentOfInvestmentSecurities" xlink:label="loc_MDBHImpairmentOfInvestmentSecurities" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingIncomeLossAbstract" xlink:to="loc_MDBHImpairmentOfInvestmentSecurities" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherOperatingIncome" xlink:label="loc_us-gaapOtherOperatingIncome" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingIncomeLossAbstract" xlink:to="loc_us-gaapOtherOperatingIncome" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaapOperatingIncomeLoss" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapOperatingIncomeLoss" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_us-gaapOperatingExpensesAbstract" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapOperatingExpensesAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpenseAbstract" xlink:label="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingExpensesAbstract" xlink:to="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_CompensationCosts" xlink:label="loc_MDBHCompensationCosts" />
      <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" xlink:to="loc_MDBHCompensationCosts" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_OperatingExpenseRelatedParty" xlink:label="loc_MDBHOperatingExpenseRelatedParty" />
      <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" xlink:to="loc_MDBHOperatingExpenseRelatedParty" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfessionalFees" xlink:label="loc_us-gaapProfessionalFees" />
      <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" xlink:to="loc_us-gaapProfessionalFees" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommunicationsAndInformationTechnology" xlink:label="loc_us-gaapCommunicationsAndInformationTechnology" />
      <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" xlink:to="loc_us-gaapCommunicationsAndInformationTechnology" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ClearingAndOtherCharges" xlink:label="loc_MDBHClearingAndOtherCharges" />
      <link:presentationArc order="140" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" xlink:to="loc_MDBHClearingAndOtherCharges" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherGeneralAndAdministrativeExpense" xlink:label="loc_us-gaapOtherGeneralAndAdministrativeExpense" />
      <link:presentationArc order="150" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" xlink:to="loc_us-gaapOtherGeneralAndAdministrativeExpense" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="loc_us-gaapGeneralAndAdministrativeExpense" />
      <link:presentationArc order="160" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" xlink:to="loc_us-gaapGeneralAndAdministrativeExpense" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="loc_us-gaapResearchAndDevelopmentExpense" />
      <link:presentationArc order="170" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingExpensesAbstract" xlink:to="loc_us-gaapResearchAndDevelopmentExpense" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingCostsAndExpenses" xlink:label="loc_us-gaapOperatingCostsAndExpenses" />
      <link:presentationArc order="180" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapOperatingCostsAndExpenses" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_NetOperatingIncomeLoss" xlink:label="loc_MDBHNetOperatingIncomeLoss" />
      <link:presentationArc order="190" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_MDBHNetOperatingIncomeLoss" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestAndOtherIncomeAbstract" xlink:label="loc_us-gaapInterestAndOtherIncomeAbstract" />
      <link:presentationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapInterestAndOtherIncomeAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_MiscellaneousIncome" xlink:label="loc_MDBHMiscellaneousIncome" />
      <link:presentationArc order="210" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapInterestAndOtherIncomeAbstract" xlink:to="loc_MDBHMiscellaneousIncome" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncome" xlink:label="loc_us-gaapOtherNonoperatingIncome" />
      <link:presentationArc order="220" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapInterestAndOtherIncomeAbstract" xlink:to="loc_us-gaapOtherNonoperatingIncome" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseNonoperating" xlink:label="loc_us-gaapInterestExpenseNonoperating" />
      <link:presentationArc order="230" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapInterestAndOtherIncomeAbstract" xlink:to="loc_us-gaapInterestExpenseNonoperating" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_GainRelatedToDilutionEvents" xlink:label="loc_MDBHGainRelatedToDilutionEvents" />
      <link:presentationArc order="240" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapInterestAndOtherIncomeAbstract" xlink:to="loc_MDBHGainRelatedToDilutionEvents" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal" xlink:label="loc_us-gaapDisposalGroupNotDiscontinuedOperationGainLossOnDisposal" />
      <link:presentationArc order="250" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapInterestAndOtherIncomeAbstract" xlink:to="loc_us-gaapDisposalGroupNotDiscontinuedOperationGainLossOnDisposal" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" />
      <link:presentationArc order="260" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaapIncomeTaxExpenseBenefit" />
      <link:presentationArc order="270" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapIncomeTaxExpenseBenefit" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestment" xlink:label="loc_MDBHIncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestment" />
      <link:presentationArc order="280" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_MDBHIncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestment" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_IncomeLossFromEquityMethodInvestment" xlink:label="loc_MDBHIncomeLossFromEquityMethodInvestment" />
      <link:presentationArc order="290" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_MDBHIncomeLossFromEquityMethodInvestment" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaapProfitLoss" />
      <link:presentationArc order="300" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapProfitLoss" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="loc_us-gaapNetIncomeLossAttributableToNoncontrollingInterest" />
      <link:presentationArc order="310" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapNetIncomeLossAttributableToNoncontrollingInterest" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaapNetIncomeLoss" />
      <link:presentationArc order="320" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapNetIncomeLoss" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaapEarningsPerShareAbstract" />
      <link:presentationArc order="330" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapEarningsPerShareAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaapEarningsPerShareBasic" />
      <link:presentationArc order="340" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapEarningsPerShareBasic" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaapWeightedAverageNumberOfSharesOutstandingBasic" />
      <link:presentationArc order="350" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapWeightedAverageNumberOfSharesOutstandingBasic" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaapEarningsPerShareDiluted" />
      <link:presentationArc order="360" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapEarningsPerShareDiluted" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaapWeightedAverageNumberOfDilutedSharesOutstanding" />
      <link:presentationArc order="370" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapWeightedAverageNumberOfDilutedSharesOutstanding" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/StatementsOfOperationsParenthetical" xlink:title="00000005 - Statement - Consolidated Statements of Operations (Parenthetical)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaapIncomeStatementAbstract" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ResearchAndDevelopmentGrants" xlink:label="loc_MDBHResearchAndDevelopmentGrants" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeStatementAbstract" xlink:to="loc_MDBHResearchAndDevelopmentGrants" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/StatementsOfChangesInEquity" xlink:title="00000006 - Statement - Consolidated Statements of Changes in Equity">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_us-gaapStatementOfStockholdersEquityAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfStockholdersEquityAbstract" xlink:to="loc_us-gaapStatementTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable" xlink:to="loc_us-gaapStatementLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaapStatementEquityComponentsAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable" xlink:to="loc_us-gaapStatementEquityComponentsAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaapEquityComponentDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementEquityComponentsAxis" xlink:to="loc_us-gaapEquityComponentDomain" order="60" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaapCommonStockMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementEquityComponentsAxis" xlink:to="loc_us-gaapCommonStockMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaapAdditionalPaidInCapitalMember" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementEquityComponentsAxis" xlink:to="loc_us-gaapAdditionalPaidInCapitalMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaapRetainedEarningsMember" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementEquityComponentsAxis" xlink:to="loc_us-gaapRetainedEarningsMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NoncontrollingInterestMember" xlink:label="loc_us-gaapNoncontrollingInterestMember" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementEquityComponentsAxis" xlink:to="loc_us-gaapNoncontrollingInterestMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaapStatementClassOfStockAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable" xlink:to="loc_us-gaapStatementClassOfStockAxis" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaapClassOfStockDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementClassOfStockAxis" xlink:to="loc_us-gaapClassOfStockDomain" order="60" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaapCommonClassAMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementClassOfStockAxis" xlink:to="loc_us-gaapCommonClassAMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaapCommonClassBMember" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementClassOfStockAxis" xlink:to="loc_us-gaapCommonClassBMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaapStockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapStockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharesOutstanding" xlink:label="loc_us-gaapSharesOutstanding" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapSharesOutstanding" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="loc_us-gaapStockIssuedDuringPeriodValueNewIssues" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapStockIssuedDuringPeriodValueNewIssues" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="loc_us-gaapStockIssuedDuringPeriodSharesNewIssues" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapStockIssuedDuringPeriodSharesNewIssues" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:label="loc_us-gaapAdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapAdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_Netincomeloss1" xlink:label="loc_MDBHNetincomeloss1" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_MDBHNetincomeloss1" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest" xlink:label="loc_us-gaapNoncontrollingInterestIncreaseFromSaleOfParentEquityInterest" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapNoncontrollingInterestIncreaseFromSaleOfParentEquityInterest" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_EffectOfDeconsolidationOfSubsidiary" xlink:label="loc_MDBHEffectOfDeconsolidationOfSubsidiary" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_MDBHEffectOfDeconsolidationOfSubsidiary" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaapStockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_2" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapStockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharesOutstanding" xlink:label="loc_us-gaapSharesOutstanding_2" />
      <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapSharesOutstanding_2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/StatementsOfCashFlows" xlink:title="00000007 - Statement - Consolidated Statements of Cash Flows">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaapStatementOfCashFlowsAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaapNetCashProvidedByUsedInOperatingActivitiesAbstract" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfCashFlowsAbstract" xlink:to="loc_us-gaapNetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaapProfitLoss" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_us-gaapProfitLoss" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrealizedGainLossOnInvestments" xlink:label="loc_us-gaapUnrealizedGainLossOnInvestments" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_us-gaapUnrealizedGainLossOnInvestments" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_AccretionOfInvestmentsAtAmortizedCostUSTreasuryBills" xlink:label="loc_MDBHAccretionOfInvestmentsAtAmortizedCostUSTreasuryBills" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_MDBHAccretionOfInvestmentsAtAmortizedCostUSTreasuryBills" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealizedInvestmentGainsLosses" xlink:label="loc_us-gaapRealizedInvestmentGainsLosses" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_us-gaapRealizedInvestmentGainsLosses" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaapShareBasedCompensation" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_us-gaapShareBasedCompensation" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestmentDividendsOrDistributions" xlink:label="loc_us-gaapEquityMethodInvestmentDividendsOrDistributions" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_us-gaapEquityMethodInvestmentDividendsOrDistributions" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaapDepreciationDepletionAndAmortization" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_us-gaapDepreciationDepletionAndAmortization" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInDeferredIncomeTaxes" xlink:label="loc_us-gaapIncreaseDecreaseInDeferredIncomeTaxes" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_us-gaapIncreaseDecreaseInDeferredIncomeTaxes" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DilutionOfDeferredGrantReimbursement" xlink:label="loc_MDBHDilutionOfDeferredGrantReimbursement" />
      <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_MDBHDilutionOfDeferredGrantReimbursement" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeconsolidationGainOrLossAmount" xlink:label="loc_us-gaapDeconsolidationGainOrLossAmount" />
      <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_us-gaapDeconsolidationGainOrLossAmount" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_PortionOfLossFromEquityInvestment" xlink:label="loc_MDBHPortionOfLossFromEquityInvestment" />
      <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_MDBHPortionOfLossFromEquityInvestment" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_GainRelatedToDilutionEvents" xlink:label="loc_MDBHGainRelatedToDilutionEvents" />
      <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_MDBHGainRelatedToDilutionEvents" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ProceedsFromWarrantsIssuedAsPartOfInvestmentBankingDeal" xlink:label="loc_MDBHProceedsFromWarrantsIssuedAsPartOfInvestmentBankingDeal" />
      <link:presentationArc order="140" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_MDBHProceedsFromWarrantsIssuedAsPartOfInvestmentBankingDeal" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal" xlink:label="loc_us-gaapEquityMethodInvestmentRealizedGainLossOnDisposal" />
      <link:presentationArc order="150" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_us-gaapEquityMethodInvestmentRealizedGainLossOnDisposal" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_IncomeRecognizedFromWarrantsReceived" xlink:label="loc_MDBHIncomeRecognizedFromWarrantsReceived" />
      <link:presentationArc order="160" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_MDBHIncomeRecognizedFromWarrantsReceived" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ImpairmentOfInvestmentsSecurities" xlink:label="loc_MDBHImpairmentOfInvestmentsSecurities" />
      <link:presentationArc order="170" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_MDBHImpairmentOfInvestmentsSecurities" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:label="loc_us-gaapIncreaseDecreaseInDeferredRevenue" />
      <link:presentationArc order="180" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_us-gaapIncreaseDecreaseInDeferredRevenue" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense" xlink:label="loc_us-gaapOperatingLeaseRightOfUseAssetAmortizationExpense" />
      <link:presentationArc order="190" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_us-gaapOperatingLeaseRightOfUseAssetAmortizationExpense" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOperatingLeaseLiability" xlink:label="loc_us-gaapIncreaseDecreaseInOperatingLeaseLiability" />
      <link:presentationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_us-gaapIncreaseDecreaseInOperatingLeaseLiability" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaapIncreaseDecreaseInOperatingCapitalAbstract" />
      <link:presentationArc order="210" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_us-gaapIncreaseDecreaseInOperatingCapitalAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOperatingAssetsAbstract" xlink:label="loc_us-gaapIncreaseDecreaseInOperatingAssetsAbstract" />
      <link:presentationArc order="220" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingCapitalAbstract" xlink:to="loc_us-gaapIncreaseDecreaseInOperatingAssetsAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherReceivables" xlink:label="loc_us-gaapIncreaseDecreaseInOtherReceivables" />
      <link:presentationArc order="230" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingAssetsAbstract" xlink:to="loc_us-gaapIncreaseDecreaseInOtherReceivables" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaapIncreaseDecreaseInAccountsReceivable" />
      <link:presentationArc order="240" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingAssetsAbstract" xlink:to="loc_us-gaapIncreaseDecreaseInAccountsReceivable" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInDueFromRelatedPartiesCurrent" xlink:label="loc_us-gaapIncreaseDecreaseInDueFromRelatedPartiesCurrent" />
      <link:presentationArc order="250" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingAssetsAbstract" xlink:to="loc_us-gaapIncreaseDecreaseInDueFromRelatedPartiesCurrent" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaapIncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" />
      <link:presentationArc order="260" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingAssetsAbstract" xlink:to="loc_us-gaapIncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInDepositOtherAssets" xlink:label="loc_us-gaapIncreaseDecreaseInDepositOtherAssets" />
      <link:presentationArc order="270" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingAssetsAbstract" xlink:to="loc_us-gaapIncreaseDecreaseInDepositOtherAssets" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract" xlink:label="loc_us-gaapIncreaseDecreaseInOperatingLiabilitiesAbstract" />
      <link:presentationArc order="280" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingCapitalAbstract" xlink:to="loc_us-gaapIncreaseDecreaseInOperatingLiabilitiesAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherAccountsPayable" xlink:label="loc_us-gaapIncreaseDecreaseInOtherAccountsPayable" />
      <link:presentationArc order="290" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingLiabilitiesAbstract" xlink:to="loc_us-gaapIncreaseDecreaseInOtherAccountsPayable" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="loc_us-gaapIncreaseDecreaseInAccruedLiabilities" />
      <link:presentationArc order="300" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingLiabilitiesAbstract" xlink:to="loc_us-gaapIncreaseDecreaseInAccruedLiabilities" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInDueToRelatedPartiesCurrent" xlink:label="loc_us-gaapIncreaseDecreaseInDueToRelatedPartiesCurrent" />
      <link:presentationArc order="310" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingLiabilitiesAbstract" xlink:to="loc_us-gaapIncreaseDecreaseInDueToRelatedPartiesCurrent" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInPayablesToCustomers" xlink:label="loc_us-gaapIncreaseDecreaseInPayablesToCustomers" />
      <link:presentationArc order="320" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingLiabilitiesAbstract" xlink:to="loc_us-gaapIncreaseDecreaseInPayablesToCustomers" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_IncreaseDecreaseInPayablesToNoncustomers" xlink:label="loc_MDBHIncreaseDecreaseInPayablesToNoncustomers" />
      <link:presentationArc order="330" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingLiabilitiesAbstract" xlink:to="loc_MDBHIncreaseDecreaseInPayablesToNoncustomers" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" />
      <link:presentationArc order="340" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="loc_us-gaapNetCashProvidedByUsedInInvestingActivitiesAbstract" />
      <link:presentationArc order="350" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfCashFlowsAbstract" xlink:to="loc_us-gaapNetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_PaymentsToAcquireInvestmentsSecurities" xlink:label="loc_MDBHPaymentsToAcquireInvestmentsSecurities" />
      <link:presentationArc order="360" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="loc_MDBHPaymentsToAcquireInvestmentsSecurities" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ProceedsFromInvestmentsSecurities" xlink:label="loc_MDBHProceedsFromInvestmentsSecurities" />
      <link:presentationArc order="370" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="loc_MDBHProceedsFromInvestmentsSecurities" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireEquityMethodInvestments" xlink:label="loc_us-gaapPaymentsToAcquireEquityMethodInvestments" />
      <link:presentationArc order="380" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="loc_us-gaapPaymentsToAcquireEquityMethodInvestments" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_PaymentForDeferredGrantReimbursement" xlink:label="loc_MDBHPaymentForDeferredGrantReimbursement" />
      <link:presentationArc order="390" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="loc_MDBHPaymentForDeferredGrantReimbursement" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForProceedsFromProductiveAssets" xlink:label="loc_us-gaapPaymentsForProceedsFromProductiveAssets" />
      <link:presentationArc order="400" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="loc_us-gaapPaymentsForProceedsFromProductiveAssets" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" />
      <link:presentationArc order="410" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract" />
      <link:presentationArc order="420" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfCashFlowsAbstract" xlink:to="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromPaymentsToMinorityShareholders" xlink:label="loc_us-gaapProceedsFromPaymentsToMinorityShareholders" />
      <link:presentationArc order="430" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="loc_us-gaapProceedsFromPaymentsToMinorityShareholders" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" />
      <link:presentationArc order="440" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:label="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" />
      <link:presentationArc order="450" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfCashFlowsAbstract" xlink:to="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" />
      <link:presentationArc order="460" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfCashFlowsAbstract" xlink:to="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_2" />
      <link:presentationArc order="470" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfCashFlowsAbstract" xlink:to="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="loc_us-gaapSupplementalCashFlowInformationAbstract" />
      <link:presentationArc order="480" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfCashFlowsAbstract" xlink:to="loc_us-gaapSupplementalCashFlowInformationAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxesPaidNet" xlink:label="loc_us-gaapIncomeTaxesPaidNet" />
      <link:presentationArc order="490" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSupplementalCashFlowInformationAbstract" xlink:to="loc_us-gaapIncomeTaxesPaidNet" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:label="loc_us-gaapNoncashInvestingAndFinancingItemsAbstract" />
      <link:presentationArc order="500" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfCashFlowsAbstract" xlink:to="loc_us-gaapNoncashInvestingAndFinancingItemsAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_WarrantsReceivedAsPartOfInvestmentBankingDeal" xlink:label="loc_MDBHWarrantsReceivedAsPartOfInvestmentBankingDeal" />
      <link:presentationArc order="510" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNoncashInvestingAndFinancingItemsAbstract" xlink:to="loc_MDBHWarrantsReceivedAsPartOfInvestmentBankingDeal" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_RelienquishmentOfDeferredCostsOfInitialPublicOfferingFromPriorYear" xlink:label="loc_MDBHRelienquishmentOfDeferredCostsOfInitialPublicOfferingFromPriorYear" />
      <link:presentationArc order="520" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNoncashInvestingAndFinancingItemsAbstract" xlink:to="loc_MDBHRelienquishmentOfDeferredCostsOfInitialPublicOfferingFromPriorYear" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_InvestmentSecuritiesAtCostLessImpairmentReceivedInLieuOfCashPayment" xlink:label="loc_MDBHInvestmentSecuritiesAtCostLessImpairmentReceivedInLieuOfCashPayment" />
      <link:presentationArc order="530" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNoncashInvestingAndFinancingItemsAbstract" xlink:to="loc_MDBHInvestmentSecuritiesAtCostLessImpairmentReceivedInLieuOfCashPayment" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_IssuanceOfWarrantsToPurchaseClassStockRelatedToInitialPublicOffering" xlink:label="loc_MDBHIssuanceOfWarrantsToPurchaseClassStockRelatedToInitialPublicOffering" />
      <link:presentationArc order="540" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNoncashInvestingAndFinancingItemsAbstract" xlink:to="loc_MDBHIssuanceOfWarrantsToPurchaseClassStockRelatedToInitialPublicOffering" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/StatementsOfCashFlowsSupplementalDisclosures" xlink:title="00000008 - Statement - Consolidated Statements of Cash Flows, Supplemental Disclosures">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaapStatementOfCashFlowsAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaapCashAndCashEquivalentsAtCarryingValue" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfCashFlowsAbstract" xlink:to="loc_us-gaapCashAndCashEquivalentsAtCarryingValue" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations" xlink:label="loc_us-gaapCashAndSecuritiesSegregatedUnderFederalAndOtherRegulations" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfCashFlowsAbstract" xlink:to="loc_us-gaapCashAndSecuritiesSegregatedUnderFederalAndOtherRegulations" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfCashFlowsAbstract" xlink:to="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/ecd/role/PvpDisclosure" xlink:title="995410 - Disclosure - Pay vs Performance Disclosure">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PayVsPerformanceDisclosureLineItems" xlink:label="loc_ecdPayVsPerformanceDisclosureLineItems" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PvpTable" xlink:label="loc_ecdPvpTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdPayVsPerformanceDisclosureLineItems" xlink:to="loc_ecdPvpTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ExecutiveCategoryAxis" xlink:label="loc_ecdExecutiveCategoryAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdPvpTable" xlink:to="loc_ecdExecutiveCategoryAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllExecutiveCategoriesMember" xlink:label="loc_ecdAllExecutiveCategoriesMember" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdExecutiveCategoryAxis" xlink:to="loc_ecdAllExecutiveCategoriesMember" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_IndividualAxis" xlink:label="loc_ecdIndividualAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdPvpTable" xlink:to="loc_ecdIndividualAxis" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllIndividualsMember" xlink:label="loc_ecdAllIndividualsMember" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdIndividualAxis" xlink:to="loc_ecdAllIndividualsMember" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AdjToCompAxis" xlink:label="loc_ecdAdjToCompAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdPvpTable" xlink:to="loc_ecdAdjToCompAxis" order="30" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllAdjToCompMember" xlink:label="loc_ecdAllAdjToCompMember" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAdjToCompAxis" xlink:to="loc_ecdAllAdjToCompMember" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_MeasureAxis" xlink:label="loc_ecdMeasureAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdPvpTable" xlink:to="loc_ecdMeasureAxis" order="40" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PvpTableTextBlock" xlink:label="loc_ecdPvpTableTextBlock" />
      <link:presentationArc order="2000" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdPayVsPerformanceDisclosureLineItems" xlink:to="loc_ecdPvpTableTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_CoSelectedMeasureName" xlink:label="loc_ecdCoSelectedMeasureName" />
      <link:presentationArc order="2010" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdPvpTableTextBlock" xlink:to="loc_ecdCoSelectedMeasureName" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_NamedExecutiveOfficersFnTextBlock" xlink:label="loc_ecdNamedExecutiveOfficersFnTextBlock" />
      <link:presentationArc order="2020" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdCoSelectedMeasureName" xlink:to="loc_ecdNamedExecutiveOfficersFnTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PeerGroupIssuersFnTextBlock" xlink:label="loc_ecdPeerGroupIssuersFnTextBlock" />
      <link:presentationArc order="2030" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdCoSelectedMeasureName" xlink:to="loc_ecdPeerGroupIssuersFnTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ChangedPeerGroupFnTextBlock" xlink:label="loc_ecdChangedPeerGroupFnTextBlock" />
      <link:presentationArc order="2040" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdCoSelectedMeasureName" xlink:to="loc_ecdChangedPeerGroupFnTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PeoTotalCompAmt" xlink:label="loc_ecdPeoTotalCompAmt" />
      <link:presentationArc order="2050" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdCoSelectedMeasureName" xlink:to="loc_ecdPeoTotalCompAmt" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PeoActuallyPaidCompAmt" xlink:label="loc_ecdPeoActuallyPaidCompAmt" />
      <link:presentationArc order="2060" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdCoSelectedMeasureName" xlink:to="loc_ecdPeoActuallyPaidCompAmt" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AdjToPeoCompFnTextBlock" xlink:label="loc_ecdAdjToPeoCompFnTextBlock" />
      <link:presentationArc order="2070" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdCoSelectedMeasureName" xlink:to="loc_ecdAdjToPeoCompFnTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_NonPeoNeoAvgTotalCompAmt" xlink:label="loc_ecdNonPeoNeoAvgTotalCompAmt" />
      <link:presentationArc order="2080" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdPvpTableTextBlock" xlink:to="loc_ecdNonPeoNeoAvgTotalCompAmt" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_NonPeoNeoAvgCompActuallyPaidAmt" xlink:label="loc_ecdNonPeoNeoAvgCompActuallyPaidAmt" />
      <link:presentationArc order="2090" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdPvpTableTextBlock" xlink:to="loc_ecdNonPeoNeoAvgCompActuallyPaidAmt" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AdjToNonPeoNeoCompFnTextBlock" xlink:label="loc_ecdAdjToNonPeoNeoCompFnTextBlock" />
      <link:presentationArc order="2100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdNonPeoNeoAvgCompActuallyPaidAmt" xlink:to="loc_ecdAdjToNonPeoNeoCompFnTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_EquityValuationAssumptionDifferenceFnTextBlock" xlink:label="loc_ecdEquityValuationAssumptionDifferenceFnTextBlock" />
      <link:presentationArc order="2110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdNonPeoNeoAvgCompActuallyPaidAmt" xlink:to="loc_ecdEquityValuationAssumptionDifferenceFnTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock" xlink:label="loc_ecdCompActuallyPaidVsTotalShareholderRtnTextBlock" />
      <link:presentationArc order="2120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdNonPeoNeoAvgCompActuallyPaidAmt" xlink:to="loc_ecdCompActuallyPaidVsTotalShareholderRtnTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_CompActuallyPaidVsNetIncomeTextBlock" xlink:label="loc_ecdCompActuallyPaidVsNetIncomeTextBlock" />
      <link:presentationArc order="2130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdNonPeoNeoAvgCompActuallyPaidAmt" xlink:to="loc_ecdCompActuallyPaidVsNetIncomeTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock" xlink:label="loc_ecdCompActuallyPaidVsCoSelectedMeasureTextBlock" />
      <link:presentationArc order="2140" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdNonPeoNeoAvgCompActuallyPaidAmt" xlink:to="loc_ecdCompActuallyPaidVsCoSelectedMeasureTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TotalShareholderRtnVsPeerGroupTextBlock" xlink:label="loc_ecdTotalShareholderRtnVsPeerGroupTextBlock" />
      <link:presentationArc order="2150" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdNonPeoNeoAvgCompActuallyPaidAmt" xlink:to="loc_ecdTotalShareholderRtnVsPeerGroupTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_CompActuallyPaidVsOtherMeasureTextBlock" xlink:label="loc_ecdCompActuallyPaidVsOtherMeasureTextBlock" />
      <link:presentationArc order="2160" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdNonPeoNeoAvgCompActuallyPaidAmt" xlink:to="loc_ecdCompActuallyPaidVsOtherMeasureTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TabularListTableTextBlock" xlink:label="loc_ecdTabularListTableTextBlock" />
      <link:presentationArc order="2170" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdNonPeoNeoAvgCompActuallyPaidAmt" xlink:to="loc_ecdTabularListTableTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TotalShareholderRtnAmt" xlink:label="loc_ecdTotalShareholderRtnAmt" />
      <link:presentationArc order="2180" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdNonPeoNeoAvgCompActuallyPaidAmt" xlink:to="loc_ecdTotalShareholderRtnAmt" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PeerGroupTotalShareholderRtnAmt" xlink:label="loc_ecdPeerGroupTotalShareholderRtnAmt" />
      <link:presentationArc order="2190" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdNonPeoNeoAvgCompActuallyPaidAmt" xlink:to="loc_ecdPeerGroupTotalShareholderRtnAmt" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaapNetIncomeLoss" />
      <link:presentationArc order="2200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdPvpTableTextBlock" xlink:to="loc_us-gaapNetIncomeLoss" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_CoSelectedMeasureAmt" xlink:label="loc_ecdCoSelectedMeasureAmt" />
      <link:presentationArc order="2210" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetIncomeLoss" xlink:to="loc_ecdCoSelectedMeasureAmt" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_OtherPerfMeasureAmt" xlink:label="loc_ecdOtherPerfMeasureAmt" />
      <link:presentationArc order="2220" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetIncomeLoss" xlink:to="loc_ecdOtherPerfMeasureAmt" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AdjToCompAmt" xlink:label="loc_ecdAdjToCompAmt" />
      <link:presentationArc order="2230" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetIncomeLoss" xlink:to="loc_ecdAdjToCompAmt" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PeoName" xlink:label="loc_ecdPeoName" />
      <link:presentationArc order="2240" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetIncomeLoss" xlink:to="loc_ecdPeoName" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_MeasureName" xlink:label="loc_ecdMeasureName" />
      <link:presentationArc order="2250" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdPayVsPerformanceDisclosureLineItems" xlink:to="loc_ecdMeasureName" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_NonGaapMeasureDescriptionTextBlock" xlink:label="loc_ecdNonGaapMeasureDescriptionTextBlock" />
      <link:presentationArc order="2260" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdMeasureName" xlink:to="loc_ecdNonGaapMeasureDescriptionTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_Additional402vDisclosureTextBlock" xlink:label="loc_ecdAdditional402vDisclosureTextBlock" />
      <link:presentationArc order="2270" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdPayVsPerformanceDisclosureLineItems" xlink:to="loc_ecdAdditional402vDisclosureTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PnsnBnftsAdjFnTextBlock" xlink:label="loc_ecdPnsnBnftsAdjFnTextBlock" />
      <link:presentationArc order="2280" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdPayVsPerformanceDisclosureLineItems" xlink:to="loc_ecdPnsnBnftsAdjFnTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_EqtyAwrdsAdjFnTextBlock" xlink:label="loc_ecdEqtyAwrdsAdjFnTextBlock" />
      <link:presentationArc order="2290" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdPayVsPerformanceDisclosureLineItems" xlink:to="loc_ecdEqtyAwrdsAdjFnTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" xlink:title="995440 - Disclosure - Recovery of Erroneously Awarded Compensation">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_RecoveryOfErrCompDisclosureLineItems" xlink:label="loc_ecdRecoveryOfErrCompDisclosureLineItems" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ErrCompRecoveryTable" xlink:label="loc_ecdErrCompRecoveryTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdRecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecdErrCompRecoveryTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_RestatementDateAxis" xlink:label="loc_ecdRestatementDateAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdErrCompRecoveryTable" xlink:to="loc_ecdRestatementDateAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_IndividualAxis" xlink:label="loc_ecdIndividualAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdErrCompRecoveryTable" xlink:to="loc_ecdIndividualAxis" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllIndividualsMember" xlink:label="loc_ecdAllIndividualsMember" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdIndividualAxis" xlink:to="loc_ecdAllIndividualsMember" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_RestatementDeterminationDate" xlink:label="loc_ecdRestatementDeterminationDate" />
      <link:presentationArc order="2000" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdRecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecdRestatementDeterminationDate" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AggtErrCompAmt" xlink:label="loc_ecdAggtErrCompAmt" />
      <link:presentationArc order="2010" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdRestatementDeterminationDate" xlink:to="loc_ecdAggtErrCompAmt" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ErrCompAnalysisTextBlock" xlink:label="loc_ecdErrCompAnalysisTextBlock" />
      <link:presentationArc order="2020" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAggtErrCompAmt" xlink:to="loc_ecdErrCompAnalysisTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_StkPrcOrTsrEstimationMethodTextBlock" xlink:label="loc_ecdStkPrcOrTsrEstimationMethodTextBlock" />
      <link:presentationArc order="2030" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAggtErrCompAmt" xlink:to="loc_ecdStkPrcOrTsrEstimationMethodTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_OutstandingAggtErrCompAmt" xlink:label="loc_ecdOutstandingAggtErrCompAmt" />
      <link:presentationArc order="2040" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAggtErrCompAmt" xlink:to="loc_ecdOutstandingAggtErrCompAmt" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AggtErrCompNotYetDeterminedTextBlock" xlink:label="loc_ecdAggtErrCompNotYetDeterminedTextBlock" />
      <link:presentationArc order="2050" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAggtErrCompAmt" xlink:to="loc_ecdAggtErrCompNotYetDeterminedTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ForgoneRecoveryIndName" xlink:label="loc_ecdForgoneRecoveryIndName" />
      <link:presentationArc order="2060" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAggtErrCompAmt" xlink:to="loc_ecdForgoneRecoveryIndName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt" xlink:label="loc_ecdForgoneRecoveryDueToExpenseOfEnforcementAmt" />
      <link:presentationArc order="2070" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAggtErrCompAmt" xlink:to="loc_ecdForgoneRecoveryDueToExpenseOfEnforcementAmt" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt" xlink:label="loc_ecdForgoneRecoveryDueToViolationOfHomeCountryLawAmt" />
      <link:presentationArc order="2080" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdRestatementDeterminationDate" xlink:to="loc_ecdForgoneRecoveryDueToViolationOfHomeCountryLawAmt" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:label="loc_ecdForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" />
      <link:presentationArc order="2090" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdRestatementDeterminationDate" xlink:to="loc_ecdForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock" xlink:label="loc_ecdForgoneRecoveryExplanationOfImpracticabilityTextBlock" />
      <link:presentationArc order="2100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:to="loc_ecdForgoneRecoveryExplanationOfImpracticabilityTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_OutstandingRecoveryIndName" xlink:label="loc_ecdOutstandingRecoveryIndName" />
      <link:presentationArc order="2110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:to="loc_ecdOutstandingRecoveryIndName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_OutstandingRecoveryCompAmt" xlink:label="loc_ecdOutstandingRecoveryCompAmt" />
      <link:presentationArc order="2120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:to="loc_ecdOutstandingRecoveryCompAmt" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_RestatementDoesNotRequireRecoveryTextBlock" xlink:label="loc_ecdRestatementDoesNotRequireRecoveryTextBlock" />
      <link:presentationArc order="2130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:to="loc_ecdRestatementDoesNotRequireRecoveryTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" xlink:title="995443 - Disclosure - Award Timing Disclosure">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardTmgDiscLineItems" xlink:label="loc_ecdAwardTmgDiscLineItems" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardsCloseToMnpiDiscTable" xlink:label="loc_ecdAwardsCloseToMnpiDiscTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAwardTmgDiscLineItems" xlink:to="loc_ecdAwardsCloseToMnpiDiscTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_IndividualAxis" xlink:label="loc_ecdIndividualAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAwardsCloseToMnpiDiscTable" xlink:to="loc_ecdIndividualAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllIndividualsMember" xlink:label="loc_ecdAllIndividualsMember" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdIndividualAxis" xlink:to="loc_ecdAllIndividualsMember" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaapAwardTypeAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAwardsCloseToMnpiDiscTable" xlink:to="loc_us-gaapAwardTypeAxis" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAwardTypeAxis" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardTmgMnpiDiscTextBlock" xlink:label="loc_ecdAwardTmgMnpiDiscTextBlock" />
      <link:presentationArc order="2000" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAwardTmgDiscLineItems" xlink:to="loc_ecdAwardTmgMnpiDiscTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardTmgMethodTextBlock" xlink:label="loc_ecdAwardTmgMethodTextBlock" />
      <link:presentationArc order="2010" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAwardTmgDiscLineItems" xlink:to="loc_ecdAwardTmgMethodTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardTmgPredtrmndFlag" xlink:label="loc_ecdAwardTmgPredtrmndFlag" />
      <link:presentationArc order="2020" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAwardTmgDiscLineItems" xlink:to="loc_ecdAwardTmgPredtrmndFlag" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardTmgMnpiCnsdrdFlag" xlink:label="loc_ecdAwardTmgMnpiCnsdrdFlag" />
      <link:presentationArc order="2030" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAwardTmgDiscLineItems" xlink:to="loc_ecdAwardTmgMnpiCnsdrdFlag" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardTmgHowMnpiCnsdrdTextBlock" xlink:label="loc_ecdAwardTmgHowMnpiCnsdrdTextBlock" />
      <link:presentationArc order="2040" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAwardTmgDiscLineItems" xlink:to="loc_ecdAwardTmgHowMnpiCnsdrdTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_MnpiDiscTimedForCompValFlag" xlink:label="loc_ecdMnpiDiscTimedForCompValFlag" />
      <link:presentationArc order="2050" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAwardTmgDiscLineItems" xlink:to="loc_ecdMnpiDiscTimedForCompValFlag" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardsCloseToMnpiDiscTableTextBlock" xlink:label="loc_ecdAwardsCloseToMnpiDiscTableTextBlock" />
      <link:presentationArc order="2060" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAwardTmgDiscLineItems" xlink:to="loc_ecdAwardsCloseToMnpiDiscTableTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardsCloseToMnpiDiscIndName" xlink:label="loc_ecdAwardsCloseToMnpiDiscIndName" />
      <link:presentationArc order="2070" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAwardTmgDiscLineItems" xlink:to="loc_ecdAwardsCloseToMnpiDiscIndName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardUndrlygSecuritiesAmt" xlink:label="loc_ecdAwardUndrlygSecuritiesAmt" />
      <link:presentationArc order="2080" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAwardTmgDiscLineItems" xlink:to="loc_ecdAwardUndrlygSecuritiesAmt" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardExrcPrice" xlink:label="loc_ecdAwardExrcPrice" />
      <link:presentationArc order="2090" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAwardTmgDiscLineItems" xlink:to="loc_ecdAwardExrcPrice" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AwardGrantDateFairValue" xlink:label="loc_ecdAwardGrantDateFairValue" />
      <link:presentationArc order="2100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAwardTmgDiscLineItems" xlink:to="loc_ecdAwardGrantDateFairValue" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_UndrlygSecurityMktPriceChngPct" xlink:label="loc_ecdUndrlygSecurityMktPriceChngPct" />
      <link:presentationArc order="2110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdAwardTmgDiscLineItems" xlink:to="loc_ecdUndrlygSecurityMktPriceChngPct" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" xlink:title="995445 - Disclosure - Insider Trading Arrangements">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_InsiderTradingArrLineItems" xlink:label="loc_ecdInsiderTradingArrLineItems" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_MtrlTermsOfTrdArrTextBlock" xlink:label="loc_ecdMtrlTermsOfTrdArrTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdInsiderTradingArrLineItems" xlink:to="loc_ecdMtrlTermsOfTrdArrTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TrdArrIndName" xlink:label="loc_ecdTrdArrIndName" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdInsiderTradingArrLineItems" xlink:to="loc_ecdTrdArrIndName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TrdArrIndTitle" xlink:label="loc_ecdTrdArrIndTitle" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdInsiderTradingArrLineItems" xlink:to="loc_ecdTrdArrIndTitle" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_Rule10b51ArrAdoptedFlag" xlink:label="loc_ecdRule10b51ArrAdoptedFlag" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdInsiderTradingArrLineItems" xlink:to="loc_ecdRule10b51ArrAdoptedFlag" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_NonRule10b51ArrAdoptedFlag" xlink:label="loc_ecdNonRule10b51ArrAdoptedFlag" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdInsiderTradingArrLineItems" xlink:to="loc_ecdNonRule10b51ArrAdoptedFlag" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TrdArrAdoptionDate" xlink:label="loc_ecdTrdArrAdoptionDate" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdInsiderTradingArrLineItems" xlink:to="loc_ecdTrdArrAdoptionDate" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_Rule10b51ArrTrmntdFlag" xlink:label="loc_ecdRule10b51ArrTrmntdFlag" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdInsiderTradingArrLineItems" xlink:to="loc_ecdRule10b51ArrTrmntdFlag" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_NonRule10b51ArrTrmntdFlag" xlink:label="loc_ecdNonRule10b51ArrTrmntdFlag" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdInsiderTradingArrLineItems" xlink:to="loc_ecdNonRule10b51ArrTrmntdFlag" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TrdArrTerminationDate" xlink:label="loc_ecdTrdArrTerminationDate" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdInsiderTradingArrLineItems" xlink:to="loc_ecdTrdArrTerminationDate" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TrdArrExpirationDate" xlink:label="loc_ecdTrdArrExpirationDate" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdInsiderTradingArrLineItems" xlink:to="loc_ecdTrdArrExpirationDate" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TrdArrDuration" xlink:label="loc_ecdTrdArrDuration" />
      <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdInsiderTradingArrLineItems" xlink:to="loc_ecdTrdArrDuration" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_TrdArrSecuritiesAggAvailAmt" xlink:label="loc_ecdTrdArrSecuritiesAggAvailAmt" />
      <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdInsiderTradingArrLineItems" xlink:to="loc_ecdTrdArrSecuritiesAggAvailAmt" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_NoInsiderTradingFlag" xlink:label="loc_MDBHNoInsiderTradingFlag" />
      <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdInsiderTradingArrLineItems" xlink:to="loc_MDBHNoInsiderTradingFlag" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc" xlink:title="995447 - Disclosure - Insider Trading Policies and Procedures">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_InsiderTradingPoliciesProcLineItems" xlink:label="loc_ecdInsiderTradingPoliciesProcLineItems" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_InsiderTrdPoliciesProcAdoptedFlag" xlink:label="loc_ecdInsiderTrdPoliciesProcAdoptedFlag" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdInsiderTradingPoliciesProcLineItems" xlink:to="loc_ecdInsiderTrdPoliciesProcAdoptedFlag" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock" xlink:label="loc_ecdInsiderTrdPoliciesProcNotAdoptedTextBlock" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecdInsiderTradingPoliciesProcLineItems" xlink:to="loc_ecdInsiderTrdPoliciesProcNotAdoptedTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/cyd/role/CybersecurityRiskManagementAndStrategyDisclosure" xlink:title="00000014 - Disclosure - Cybersecurity Risk Management and Strategy Disclosure">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_CybersecurityRiskManagementStrategyAndGovernanceAbstract" xlink:label="loc_cydCybersecurityRiskManagementStrategyAndGovernanceAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_CybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock" xlink:label="loc_cydCybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydCybersecurityRiskManagementStrategyAndGovernanceAbstract" xlink:to="loc_cydCybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_CybersecurityRiskManagementProcessesIntegratedFlag" xlink:label="loc_cydCybersecurityRiskManagementProcessesIntegratedFlag" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydCybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock" xlink:to="loc_cydCybersecurityRiskManagementProcessesIntegratedFlag" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_CybersecurityRiskManagementProcessesIntegratedTextBlock" xlink:label="loc_cydCybersecurityRiskManagementProcessesIntegratedTextBlock" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydCybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock" xlink:to="loc_cydCybersecurityRiskManagementProcessesIntegratedTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_CybersecurityRiskManagementThirdPartyEngagedFlag" xlink:label="loc_cydCybersecurityRiskManagementThirdPartyEngagedFlag" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydCybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock" xlink:to="loc_cydCybersecurityRiskManagementThirdPartyEngagedFlag" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_CybersecurityRiskThirdPartyOversightAndIdentificationProcessesFlag" xlink:label="loc_cydCybersecurityRiskThirdPartyOversightAndIdentificationProcessesFlag" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydCybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock" xlink:to="loc_cydCybersecurityRiskThirdPartyOversightAndIdentificationProcessesFlag" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_CybersecurityRiskMateriallyAffectedOrReasonablyLikelyToMateriallyAffectRegistrantFlag" xlink:label="loc_cydCybersecurityRiskMateriallyAffectedOrReasonablyLikelyToMateriallyAffectRegistrantFlag" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydCybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock" xlink:to="loc_cydCybersecurityRiskMateriallyAffectedOrReasonablyLikelyToMateriallyAffectRegistrantFlag" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_CybersecurityRiskMateriallyAffectedOrReasonablyLikelyToMateriallyAffectRegistrantTextBlock" xlink:label="loc_cydCybersecurityRiskMateriallyAffectedOrReasonablyLikelyToMateriallyAffectRegistrantTextBlock" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydCybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock" xlink:to="loc_cydCybersecurityRiskMateriallyAffectedOrReasonablyLikelyToMateriallyAffectRegistrantTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_CybersecurityRiskBoardOfDirectorsOversightTextBlock" xlink:label="loc_cydCybersecurityRiskBoardOfDirectorsOversightTextBlock" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydCybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock" xlink:to="loc_cydCybersecurityRiskBoardOfDirectorsOversightTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_CybersecurityRiskBoardCommitteeOrSubcommitteeResponsibleForOversightTextBlock" xlink:label="loc_cydCybersecurityRiskBoardCommitteeOrSubcommitteeResponsibleForOversightTextBlock" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydCybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock" xlink:to="loc_cydCybersecurityRiskBoardCommitteeOrSubcommitteeResponsibleForOversightTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_CybersecurityRiskProcessForInformingBoardCommitteeOrSubcommitteeResponsibleForOversightTextBlock" xlink:label="loc_cydCybersecurityRiskProcessForInformingBoardCommitteeOrSubcommitteeResponsibleForOversightTextBlock" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydCybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock" xlink:to="loc_cydCybersecurityRiskProcessForInformingBoardCommitteeOrSubcommitteeResponsibleForOversightTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_CybersecurityRiskRoleOfManagementTextBlock" xlink:label="loc_cydCybersecurityRiskRoleOfManagementTextBlock" />
      <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydCybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock" xlink:to="loc_cydCybersecurityRiskRoleOfManagementTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_CybersecurityRiskManagementPositionsOrCommitteesResponsibleFlag" xlink:label="loc_cydCybersecurityRiskManagementPositionsOrCommitteesResponsibleFlag" />
      <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydCybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock" xlink:to="loc_cydCybersecurityRiskManagementPositionsOrCommitteesResponsibleFlag" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_CybersecurityRiskManagementPositionsOrCommitteesResponsibleTextBlock" xlink:label="loc_cydCybersecurityRiskManagementPositionsOrCommitteesResponsibleTextBlock" />
      <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydCybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock" xlink:to="loc_cydCybersecurityRiskManagementPositionsOrCommitteesResponsibleTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_CybersecurityRiskManagementExpertiseOfManagementResponsibleTextBlock" xlink:label="loc_cydCybersecurityRiskManagementExpertiseOfManagementResponsibleTextBlock" />
      <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydCybersecurityRiskManagementStrategyAndGovernanceAbstract" xlink:to="loc_cydCybersecurityRiskManagementExpertiseOfManagementResponsibleTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_CybersecurityRiskProcessForInformingManagementOrCommitteesResponsibleTextBlock" xlink:label="loc_cydCybersecurityRiskProcessForInformingManagementOrCommitteesResponsibleTextBlock" />
      <link:presentationArc order="140" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydCybersecurityRiskManagementStrategyAndGovernanceAbstract" xlink:to="loc_cydCybersecurityRiskProcessForInformingManagementOrCommitteesResponsibleTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_CybersecurityRiskManagementPositionsOrCommitteesResponsibleReportToBoardFlag" xlink:label="loc_cydCybersecurityRiskManagementPositionsOrCommitteesResponsibleReportToBoardFlag" />
      <link:presentationArc order="150" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydCybersecurityRiskManagementStrategyAndGovernanceAbstract" xlink:to="loc_cydCybersecurityRiskManagementPositionsOrCommitteesResponsibleReportToBoardFlag" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/cyd/role/MaterialCybersecurityIncidentDisclosure" xlink:title="00000015 - Disclosure - Material Cybersecurity Incident Disclosure">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_MaterialCybersecurityIncidentAbstract" xlink:label="loc_cydMaterialCybersecurityIncidentAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_MaterialCybersecurityIncidentNatureTextBlock" xlink:label="loc_cydMaterialCybersecurityIncidentNatureTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydMaterialCybersecurityIncidentAbstract" xlink:to="loc_cydMaterialCybersecurityIncidentNatureTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_MaterialCybersecurityIncidentScopeTextBlock" xlink:label="loc_cydMaterialCybersecurityIncidentScopeTextBlock" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydMaterialCybersecurityIncidentAbstract" xlink:to="loc_cydMaterialCybersecurityIncidentScopeTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_MaterialCybersecurityIncidentTimingTextBlock" xlink:label="loc_cydMaterialCybersecurityIncidentTimingTextBlock" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydMaterialCybersecurityIncidentAbstract" xlink:to="loc_cydMaterialCybersecurityIncidentTimingTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_MaterialCybersecurityIncidentMaterialImpactOrReasonablyLikelyMaterialImpactTextBlock" xlink:label="loc_cydMaterialCybersecurityIncidentMaterialImpactOrReasonablyLikelyMaterialImpactTextBlock" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydMaterialCybersecurityIncidentAbstract" xlink:to="loc_cydMaterialCybersecurityIncidentMaterialImpactOrReasonablyLikelyMaterialImpactTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/cyd/2025/cyd-2025.xsd#cyd_MaterialCybersecurityIncidentInformationNotAvailableOrUndeterminedTextBlock" xlink:label="loc_cydMaterialCybersecurityIncidentInformationNotAvailableOrUndeterminedTextBlock" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cydMaterialCybersecurityIncidentAbstract" xlink:to="loc_cydMaterialCybersecurityIncidentInformationNotAvailableOrUndeterminedTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/OrganizationAndDescriptionOfBusiness" xlink:title="999016 - Disclosure - Organization and Description of Business">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" xlink:label="loc_us-gaapBusinessDescriptionAndBasisOfPresentationTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapBusinessDescriptionAndBasisOfPresentationTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/SummaryOfSignificantAccountingPolicies" xlink:title="999017 - Disclosure - Summary of Significant Accounting Policies">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="loc_us-gaapSignificantAccountingPoliciesTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapSignificantAccountingPoliciesTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/SegmentReporting" xlink:title="999018 - Disclosure - Segment Reporting">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaapSegmentReportingAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingDisclosureTextBlock" xlink:label="loc_us-gaapSegmentReportingDisclosureTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingAbstract" xlink:to="loc_us-gaapSegmentReportingDisclosureTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/EquityAndNon-controllingInterests" xlink:title="999019 - Disclosure - Equity and Non-Controlling Interests">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaapEquityAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:label="loc_us-gaapStockholdersEquityNoteDisclosureTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityAbstract" xlink:to="loc_us-gaapStockholdersEquityNoteDisclosureTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/Deconsolidation" xlink:title="999020 - Disclosure - Deconsolidation">
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DisclosureDeconsolidationAbstract" xlink:label="loc_MDBHDisclosureDeconsolidationAbstract" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DeconsolidationDisclosureTextBlock" xlink:label="loc_MDBHDeconsolidationDisclosureTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureDeconsolidationAbstract" xlink:to="loc_MDBHDeconsolidationDisclosureTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/EquityMethodInvestment" xlink:title="999021 - Disclosure - Equity Method Investment">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract" xlink:label="loc_us-gaapEquityMethodInvestmentsAndJointVenturesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestmentsDisclosureTextBlock" xlink:label="loc_us-gaapEquityMethodInvestmentsDisclosureTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityMethodInvestmentsAndJointVenturesAbstract" xlink:to="loc_us-gaapEquityMethodInvestmentsDisclosureTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/Stock-basedCompensation" xlink:title="999022 - Disclosure - Stock-Based Compensation">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:label="loc_us-gaapDisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="loc_us-gaapDisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/EarningsPerShare" xlink:title="999023 - Disclosure - Earnings Per Share">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaapEarningsPerShareAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareTextBlock" xlink:label="loc_us-gaapEarningsPerShareTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEarningsPerShareAbstract" xlink:to="loc_us-gaapEarningsPerShareTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/RelatedPartyTransactions" xlink:title="999024 - Disclosure - Related Party Transactions">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="loc_us-gaapRelatedPartyTransactionsAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:label="loc_us-gaapRelatedPartyTransactionsDisclosureTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionsAbstract" xlink:to="loc_us-gaapRelatedPartyTransactionsDisclosureTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/CommitmentsAndContingencies" xlink:title="999025 - Disclosure - Commitments and Contingencies">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="loc_us-gaapCommitmentsAndContingenciesDisclosureTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract" xlink:to="loc_us-gaapCommitmentsAndContingenciesDisclosureTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/EmployeeBenefitPlans" xlink:title="999026 - Disclosure - Employee Benefit Plans">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:label="loc_us-gaapCompensationAndRetirementDisclosureAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CompensationAndEmployeeBenefitPlansTextBlock" xlink:label="loc_us-gaapCompensationAndEmployeeBenefitPlansTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCompensationAndRetirementDisclosureAbstract" xlink:to="loc_us-gaapCompensationAndEmployeeBenefitPlansTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ExclusiveLicenseAgreementMdbMinnesotaOne" xlink:title="999027 - Disclosure - Exclusive License Agreement (MDB Minnesota One)">
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DisclosureExclusiveLicenseAgreementMdbMinnesotaOneAbstract" xlink:label="loc_MDBHDisclosureExclusiveLicenseAgreementMdbMinnesotaOneAbstract" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ExclusiveLicenseAgreementTextBlock" xlink:label="loc_MDBHExclusiveLicenseAgreementTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureExclusiveLicenseAgreementMdbMinnesotaOneAbstract" xlink:to="loc_MDBHExclusiveLicenseAgreementTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/Leases" xlink:title="999028 - Disclosure - Leases">
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DisclosureLeasesAbstract" xlink:label="loc_MDBHDisclosureLeasesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeasesTextBlock" xlink:label="loc_us-gaapLesseeOperatingLeasesTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapLesseeOperatingLeasesTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/IncomeTaxes" xlink:title="999029 - Disclosure - Income Taxes">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaapIncomeTaxDisclosureAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxDisclosureTextBlock" xlink:label="loc_us-gaapIncomeTaxDisclosureTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapIncomeTaxDisclosureTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/SubsequentEvents" xlink:title="999030 - Disclosure - Subsequent Events">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="loc_us-gaapSubsequentEventsAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventsTextBlock" xlink:label="loc_us-gaapSubsequentEventsTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsequentEventsAbstract" xlink:to="loc_us-gaapSubsequentEventsTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:title="999031 - Disclosure - Summary of Significant Accounting Policies (Policies)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:label="loc_us-gaapBasisOfAccountingPolicyPolicyTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapBasisOfAccountingPolicyPolicyTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DeconsolidationPolicyTextBlock" xlink:label="loc_MDBHDeconsolidationPolicyTextBlock" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHDeconsolidationPolicyTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestmentsPolicy" xlink:label="loc_us-gaapEquityMethodInvestmentsPolicy" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapEquityMethodInvestmentsPolicy" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="loc_us-gaapIncomeTaxPolicyTextBlock" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapIncomeTaxPolicyTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UseOfEstimates" xlink:label="loc_us-gaapUseOfEstimates" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapUseOfEstimates" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_EmergingGrowthCompanyPolicyTextBlock" xlink:label="loc_MDBHEmergingGrowthCompanyPolicyTextBlock" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHEmergingGrowthCompanyPolicyTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:label="loc_us-gaapCashAndCashEquivalentsPolicyTextBlock" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapCashAndCashEquivalentsPolicyTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_SegregatedCashAndDepositsPolicyTextBlock" xlink:label="loc_MDBHSegregatedCashAndDepositsPolicyTextBlock" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHSegregatedCashAndDepositsPolicyTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepositContractsPolicy" xlink:label="loc_us-gaapDepositContractsPolicy" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapDepositContractsPolicy" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_PrepaidAndOtherCurrentAssetsPolicyTextBlock" xlink:label="loc_MDBHPrepaidAndOtherCurrentAssetsPolicyTextBlock" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHPrepaidAndOtherCurrentAssetsPolicyTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeLeasesPolicyTextBlock" xlink:label="loc_us-gaapLesseeLeasesPolicyTextBlock" />
      <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapLesseeLeasesPolicyTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CompensationRelatedCostsPolicyTextBlock" xlink:label="loc_us-gaapCompensationRelatedCostsPolicyTextBlock" />
      <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapCompensationRelatedCostsPolicyTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentPolicyTextBlock" xlink:label="loc_us-gaapInvestmentPolicyTextBlock" />
      <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapInvestmentPolicyTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueOfFinancialInstrumentsPolicy" xlink:label="loc_us-gaapFairValueOfFinancialInstrumentsPolicy" />
      <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapFairValueOfFinancialInstrumentsPolicy" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtPolicyTextBlock" xlink:label="loc_us-gaapDebtPolicyTextBlock" />
      <link:presentationArc order="140" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapDebtPolicyTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:label="loc_us-gaapPropertyPlantAndEquipmentPolicyTextBlock" />
      <link:presentationArc order="150" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapPropertyPlantAndEquipmentPolicyTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueRecognitionPolicyTextBlock" xlink:label="loc_us-gaapRevenueRecognitionPolicyTextBlock" />
      <link:presentationArc order="160" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapRevenueRecognitionPolicyTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_AccountingForResearchGrantsPolicyTextBlock" xlink:label="loc_MDBHAccountingForResearchGrantsPolicyTextBlock" />
      <link:presentationArc order="170" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHAccountingForResearchGrantsPolicyTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:label="loc_us-gaapResearchAndDevelopmentExpensePolicy" />
      <link:presentationArc order="180" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapResearchAndDevelopmentExpensePolicy" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_PatentAndLicensingLegalAndFilingFeesAndCostsPolicyTextBlock" xlink:label="loc_MDBHPatentAndLicensingLegalAndFilingFeesAndCostsPolicyTextBlock" />
      <link:presentationArc order="190" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHPatentAndLicensingLegalAndFilingFeesAndCostsPolicyTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="loc_us-gaapNewAccountingPronouncementsPolicyPolicyTextBlock" />
      <link:presentationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapNewAccountingPronouncementsPolicyPolicyTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:title="999032 - Disclosure - Summary of Significant Accounting Policies (Tables)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ScheduleofInvestmentSecuritiesBrokerDealerTableTextBlock" xlink:label="loc_MDBHScheduleofInvestmentSecuritiesBrokerDealerTableTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHScheduleofInvestmentSecuritiesBrokerDealerTableTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ScheduleofInvestmentSecuritiesNonBrokerDealerTableTextBlock" xlink:label="loc_MDBHScheduleofInvestmentSecuritiesNonBrokerDealerTableTextBlock" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHScheduleofInvestmentSecuritiesNonBrokerDealerTableTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:label="loc_us-gaapScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xlink:label="loc_us-gaapFairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapFairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock" xlink:label="loc_us-gaapFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_PropertyPlantAndEquipmentEstimatedUsefulLivesTableTextBlock" xlink:label="loc_MDBHPropertyPlantAndEquipmentEstimatedUsefulLivesTableTextBlock" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHPropertyPlantAndEquipmentEstimatedUsefulLivesTableTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="loc_us-gaapPropertyPlantAndEquipmentTextBlock" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapPropertyPlantAndEquipmentTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock" xlink:label="loc_us-gaapContractWithCustomerAssetAndLiabilityTableTextBlock" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapContractWithCustomerAssetAndLiabilityTableTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_GrantsReceivableActivityTableTextBlock" xlink:label="loc_MDBHGrantsReceivableActivityTableTextBlock" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHGrantsReceivableActivityTableTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/SegmentReportingTables" xlink:title="999033 - Disclosure - Segment Reporting (Tables)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaapSegmentReportingAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongLivedAssetsByGeographicAreasTableTextBlock" xlink:label="loc_us-gaapLongLivedAssetsByGeographicAreasTableTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingAbstract" xlink:to="loc_us-gaapLongLivedAssetsByGeographicAreasTableTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:label="loc_us-gaapScheduleOfSegmentReportingInformationBySegmentTextBlock" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingAbstract" xlink:to="loc_us-gaapScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/EquityAndNon-controllingInterestsTables" xlink:title="999034 - Disclosure - Equity and Non-Controlling Interests (Tables)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaapEquityAbstract" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ScheduleOfEquityAndNonControllingInterestsTableTextBlock" xlink:label="loc_MDBHScheduleOfEquityAndNonControllingInterestsTableTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityAbstract" xlink:to="loc_MDBHScheduleOfEquityAndNonControllingInterestsTableTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/DeconsolidationTables" xlink:title="999035 - Disclosure - Deconsolidation (Tables)">
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DisclosureDeconsolidationAbstract" xlink:label="loc_MDBHDisclosureDeconsolidationAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScheduleOfCondensedBalanceSheetTableTextBlock" xlink:label="loc_srtScheduleOfCondensedBalanceSheetTableTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureDeconsolidationAbstract" xlink:to="loc_srtScheduleOfCondensedBalanceSheetTableTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ScheduleOfGainOnDeconsolidationTableTextBlock" xlink:label="loc_MDBHScheduleOfGainOnDeconsolidationTableTextBlock" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureDeconsolidationAbstract" xlink:to="loc_MDBHScheduleOfGainOnDeconsolidationTableTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/EquityMethodInvestmentTables" xlink:title="999036 - Disclosure - Equity Method Investment (Tables)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract" xlink:label="loc_us-gaapEquityMethodInvestmentsAndJointVenturesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestmentsTextBlock" xlink:label="loc_us-gaapEquityMethodInvestmentsTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityMethodInvestmentsAndJointVenturesAbstract" xlink:to="loc_us-gaapEquityMethodInvestmentsTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/Stock-basedCompensationTables" xlink:title="999037 - Disclosure - Stock-Based Compensation (Tables)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaapAwardTypeAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="loc_us-gaapAwardTypeAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAwardTypeAxis" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_TimeBasedMember" xlink:label="loc_MDBHTimeBasedMember" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_MDBHTimeBasedMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_MarketBasedMember" xlink:label="loc_MDBHMarketBasedMember" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_MDBHMarketBasedMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" xlink:label="loc_us-gaapScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock" xlink:label="loc_us-gaapDisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapDisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/EarningsPerShareTables" xlink:title="999038 - Disclosure - Earnings Per Share (Tables)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaapEarningsPerShareAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="loc_us-gaapScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEarningsPerShareAbstract" xlink:to="loc_us-gaapScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/LeasesTables" xlink:title="999039 - Disclosure - Leases (Tables)">
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DisclosureLeasesAbstract" xlink:label="loc_MDBHDisclosureLeasesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeaseCostTableTextBlock" xlink:label="loc_us-gaapLeaseCostTableTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapLeaseCostTableTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityMaturityTableTextBlock" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapLesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/IncomeTaxesTables" xlink:title="999040 - Disclosure - Income Taxes (Tables)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaapIncomeTaxDisclosureAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:label="loc_us-gaapScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:label="loc_us-gaapScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:label="loc_us-gaapScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/OrganizationAndDescriptionOfBusinessDetailsNarrative" xlink:title="999041 - Disclosure - Organization and Description of Business (Details Narrative)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_AccountingPoliciesTable" xlink:label="loc_MDBHAccountingPoliciesTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHAccountingPoliciesTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_AccountingPolicies" xlink:label="loc_MDBHAccountingPolicies" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPoliciesTable" xlink:to="loc_MDBHAccountingPolicies" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:label="loc_us-gaapSubsidiarySaleOfStockAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPoliciesTable" xlink:to="loc_us-gaapSubsidiarySaleOfStockAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:label="loc_us-gaapSaleOfStockNameOfTransactionDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsidiarySaleOfStockAxis" xlink:to="loc_us-gaapSaleOfStockNameOfTransactionDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IPOMember" xlink:label="loc_us-gaapIPOMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSaleOfStockNameOfTransactionDomain" xlink:to="loc_us-gaapIPOMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaapStatementClassOfStockAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPoliciesTable" xlink:to="loc_us-gaapStatementClassOfStockAxis" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaapClassOfStockDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementClassOfStockAxis" xlink:to="loc_us-gaapClassOfStockDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaapCommonClassAMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockDomain" xlink:to="loc_us-gaapCommonClassAMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaapStatementEquityComponentsAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPoliciesTable" xlink:to="loc_us-gaapStatementEquityComponentsAxis" order="30" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaapEquityComponentDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementEquityComponentsAxis" xlink:to="loc_us-gaapEquityComponentDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WarrantMember" xlink:label="loc_us-gaapWarrantMember" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityComponentDomain" xlink:to="loc_us-gaapWarrantMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:label="loc_srtScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPoliciesTable" xlink:to="loc_srtScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" order="40" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_EquityMethodInvesteeNameDomain" xlink:label="loc_srtEquityMethodInvesteeNameDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:to="loc_srtEquityMethodInvesteeNameDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_MDBMinnesotaOneIncMember" xlink:label="loc_MDBHMDBMinnesotaOneIncMember" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtEquityMethodInvesteeNameDomain" xlink:to="loc_MDBHMDBMinnesotaOneIncMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_MayoFoundationMember" xlink:label="loc_MDBHMayoFoundationMember" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtEquityMethodInvesteeNameDomain" xlink:to="loc_MDBHMayoFoundationMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:label="loc_us-gaapSaleOfStockNumberOfSharesIssuedInTransaction" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapSaleOfStockNumberOfSharesIssuedInTransaction" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockPricePerShare" xlink:label="loc_us-gaapSaleOfStockPricePerShare" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapSaleOfStockPricePerShare" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceInitialPublicOffering" xlink:label="loc_us-gaapProceedsFromIssuanceInitialPublicOffering" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapProceedsFromIssuanceInitialPublicOffering" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="loc_us-gaapProceedsFromIssuanceOfCommonStock" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapProceedsFromIssuanceOfCommonStock" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherExpenses" xlink:label="loc_us-gaapOtherExpenses" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapOtherExpenses" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:label="loc_us-gaapClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WarrantsAndRightsOutstandingTerm" xlink:label="loc_us-gaapWarrantsAndRightsOutstandingTerm" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapWarrantsAndRightsOutstandingTerm" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:label="loc_us-gaapClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharesIssuedPricePerShare" xlink:label="loc_us-gaapSharesIssuedPricePerShare" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapSharesIssuedPricePerShare" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAdjustmentOfWarrants" xlink:label="loc_us-gaapFairValueAdjustmentOfWarrants" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapFairValueAdjustmentOfWarrants" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice" />
      <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:label="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" />
      <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" />
      <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" />
      <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendPayments" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendPayments" />
      <link:presentationArc order="140" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendPayments" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:label="loc_us-gaapEquityMethodInvestmentOwnershipPercentage" />
      <link:presentationArc order="150" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapEquityMethodInvestmentOwnershipPercentage" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdvancesToAffiliate" xlink:label="loc_us-gaapAdvancesToAffiliate" />
      <link:presentationArc order="160" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapAdvancesToAffiliate" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Investments" xlink:label="loc_us-gaapInvestments" />
      <link:presentationArc order="170" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapInvestments" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/SummaryOfSignificantAccountingPoliciesDetailsNarrative" xlink:title="999042 - Disclosure - Summary of Significant Accounting Policies (Details Narrative)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_AccountingPoliciesTable" xlink:label="loc_MDBHAccountingPoliciesTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHAccountingPoliciesTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_AccountingPolicies" xlink:label="loc_MDBHAccountingPolicies" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPoliciesTable" xlink:to="loc_MDBHAccountingPolicies" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaapDebtInstrumentAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPoliciesTable" xlink:to="loc_us-gaapDebtInstrumentAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaapDebtInstrumentNameDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentAxis" xlink:to="loc_us-gaapDebtInstrumentNameDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_SAFEMember" xlink:label="loc_MDBHSAFEMember" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentNameDomain" xlink:to="loc_MDBHSAFEMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaapCreditFacilityAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPoliciesTable" xlink:to="loc_us-gaapCreditFacilityAxis" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaapCreditFacilityDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCreditFacilityAxis" xlink:to="loc_us-gaapCreditFacilityDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevolvingCreditFacilityMember" xlink:label="loc_us-gaapRevolvingCreditFacilityMember" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCreditFacilityDomain" xlink:to="loc_us-gaapRevolvingCreditFacilityMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashEquivalentsAtCarryingValue" xlink:label="loc_us-gaapCashEquivalentsAtCarryingValue" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapCashEquivalentsAtCarryingValue" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashFDICInsuredAmount" xlink:label="loc_us-gaapCashFDICInsuredAmount" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapCashFDICInsuredAmount" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_CashSIPCInsuredAmount" xlink:label="loc_MDBHCashSIPCInsuredAmount" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_MDBHCashSIPCInsuredAmount" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Cash" xlink:label="loc_us-gaapCash" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapCash" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashUninsuredAmount" xlink:label="loc_us-gaapCashUninsuredAmount" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapCashUninsuredAmount" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_us-gaapLineOfCreditFacilityMaximumBorrowingCapacity" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapLineOfCreditFacilityMaximumBorrowingCapacity" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Deposits" xlink:label="loc_us-gaapDeposits" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapDeposits" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndSecuritiesSegregatedUnderSecuritiesExchangeCommissionRegulation" xlink:label="loc_us-gaapCashAndSecuritiesSegregatedUnderSecuritiesExchangeCommissionRegulation" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapCashAndSecuritiesSegregatedUnderSecuritiesExchangeCommissionRegulation" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepositsAssets" xlink:label="loc_us-gaapDepositsAssets" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapDepositsAssets" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinitelivedIntangibleAssetsAcquired1" xlink:label="loc_us-gaapFinitelivedIntangibleAssetsAcquired1" />
      <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapFinitelivedIntangibleAssetsAcquired1" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_PrepaidProfessionalFees" xlink:label="loc_MDBHPrepaidProfessionalFees" />
      <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_MDBHPrepaidProfessionalFees" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecurityDeposit" xlink:label="loc_us-gaapSecurityDeposit" />
      <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapSecurityDeposit" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidInsurance" xlink:label="loc_us-gaapPrepaidInsurance" />
      <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapPrepaidInsurance" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherPrepaidExpenseCurrent" xlink:label="loc_us-gaapOtherPrepaidExpenseCurrent" />
      <link:presentationArc order="140" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapOtherPrepaidExpenseCurrent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssets" xlink:label="loc_us-gaapOtherAssets" />
      <link:presentationArc order="150" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapOtherAssets" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrealizedGainLossOnInvestments" xlink:label="loc_us-gaapUnrealizedGainLossOnInvestments" />
      <link:presentationArc order="160" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapUnrealizedGainLossOnInvestments" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ImpairmentOfInvestmentSecurities" xlink:label="loc_MDBHImpairmentOfInvestmentSecurities" />
      <link:presentationArc order="170" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_MDBHImpairmentOfInvestmentSecurities" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityExpirationDate1" xlink:label="loc_us-gaapLineOfCreditFacilityExpirationDate1" />
      <link:presentationArc order="180" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapLineOfCreditFacilityExpirationDate1" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" xlink:label="loc_us-gaapDebtInstrumentBasisSpreadOnVariableRate1" />
      <link:presentationArc order="190" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapDebtInstrumentBasisSpreadOnVariableRate1" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_us-gaapDebtInstrumentInterestRateStatedPercentage" />
      <link:presentationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapDebtInstrumentInterestRateStatedPercentage" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityCommitmentFeeAmount" xlink:label="loc_us-gaapLineOfCreditFacilityCommitmentFeeAmount" />
      <link:presentationArc order="210" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapLineOfCreditFacilityCommitmentFeeAmount" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCredit" xlink:label="loc_us-gaapLineOfCredit" />
      <link:presentationArc order="220" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapLineOfCredit" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestPayableCurrentAndNoncurrent" xlink:label="loc_us-gaapInterestPayableCurrentAndNoncurrent" />
      <link:presentationArc order="230" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapInterestPayableCurrentAndNoncurrent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherResearchAndDevelopmentExpense" xlink:label="loc_us-gaapOtherResearchAndDevelopmentExpense" />
      <link:presentationArc order="240" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapOtherResearchAndDevelopmentExpense" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_GrantDrawdowns" xlink:label="loc_MDBHGrantDrawdowns" />
      <link:presentationArc order="250" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_MDBHGrantDrawdowns" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ResearchAndDevelopmentExpenseGross" xlink:label="loc_MDBHResearchAndDevelopmentExpenseGross" />
      <link:presentationArc order="260" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_MDBHResearchAndDevelopmentExpenseGross" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherCostAndExpenseOperating" xlink:label="loc_us-gaapOtherCostAndExpenseOperating" />
      <link:presentationArc order="270" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_us-gaapOtherCostAndExpenseOperating" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfInvestmentSecuritiesBrokerDealerDetails" xlink:title="999043 - Disclosure - Schedule of Investment Securities Broker Dealer (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_AccountingPoliciesTable" xlink:label="loc_MDBHAccountingPoliciesTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHAccountingPoliciesTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_AccountingPolicies" xlink:label="loc_MDBHAccountingPolicies" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPoliciesTable" xlink:to="loc_MDBHAccountingPolicies" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaapStatementEquityComponentsAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPoliciesTable" xlink:to="loc_us-gaapStatementEquityComponentsAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaapEquityComponentDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementEquityComponentsAxis" xlink:to="loc_us-gaapEquityComponentDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaapCommonStockMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityComponentDomain" xlink:to="loc_us-gaapCommonStockMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_WarrantsOfPubliclyTradedCompaniesMember" xlink:label="loc_MDBHWarrantsOfPubliclyTradedCompaniesMember" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityComponentDomain" xlink:to="loc_MDBHWarrantsOfPubliclyTradedCompaniesMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_WarrantsOfNonPubliclyTradedCompaniesMember" xlink:label="loc_MDBHWarrantsOfNonPubliclyTradedCompaniesMember" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityComponentDomain" xlink:to="loc_MDBHWarrantsOfNonPubliclyTradedCompaniesMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaapAwardTypeAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPoliciesTable" xlink:to="loc_us-gaapAwardTypeAxis" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAwardTypeAxis" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_BrokerDealerMember" xlink:label="loc_MDBHBrokerDealerMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_MDBHBrokerDealerMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_InvestmentSecuritiesAtFairValue" xlink:label="loc_MDBHInvestmentSecuritiesAtFairValue" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_MDBHInvestmentSecuritiesAtFairValue" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfInvestmentSecuritiesNon-brokerDealerDetails" xlink:title="999044 - Disclosure - Schedule of Investment Securities Non-Broker Dealer (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_AccountingPoliciesTable" xlink:label="loc_MDBHAccountingPoliciesTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHAccountingPoliciesTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_AccountingPolicies" xlink:label="loc_MDBHAccountingPolicies" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPoliciesTable" xlink:to="loc_MDBHAccountingPolicies" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaapStatementEquityComponentsAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPoliciesTable" xlink:to="loc_us-gaapStatementEquityComponentsAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaapEquityComponentDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementEquityComponentsAxis" xlink:to="loc_us-gaapEquityComponentDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_WarrantsOfPubliclyTradedCompaniesMember" xlink:label="loc_MDBHWarrantsOfPubliclyTradedCompaniesMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityComponentDomain" xlink:to="loc_MDBHWarrantsOfPubliclyTradedCompaniesMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_SimpleAgreementOnFutureEquitiesMember" xlink:label="loc_MDBHSimpleAgreementOnFutureEquitiesMember" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityComponentDomain" xlink:to="loc_MDBHSimpleAgreementOnFutureEquitiesMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ImpairmentMember" xlink:label="loc_MDBHImpairmentMember" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityComponentDomain" xlink:to="loc_MDBHImpairmentMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaapAwardTypeAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPoliciesTable" xlink:to="loc_us-gaapAwardTypeAxis" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAwardTypeAxis" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_NonBrokerDealerMember" xlink:label="loc_MDBHNonBrokerDealerMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_MDBHNonBrokerDealerMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_InvestmentSecuritiesAtFairValue" xlink:label="loc_MDBHInvestmentSecuritiesAtFairValue" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_MDBHInvestmentSecuritiesAtFairValue" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_InvestmentSecuritiesAtCostLessImpairmentNonBrokerDealer" xlink:label="loc_MDBHInvestmentSecuritiesAtCostLessImpairmentNonBrokerDealer" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHAccountingPolicies" xlink:to="loc_MDBHInvestmentSecuritiesAtCostLessImpairmentNonBrokerDealer" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfFairValueOfFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetails" xlink:title="999045 - Disclosure - Schedule of Fair Value of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_PlatformOperatorCryptoAssetTable" xlink:label="loc_srtPlatformOperatorCryptoAssetTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_srtPlatformOperatorCryptoAssetTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_PlatformOperatorCryptoAssetLineItems" xlink:label="loc_srtPlatformOperatorCryptoAssetLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtPlatformOperatorCryptoAssetTable" xlink:to="loc_srtPlatformOperatorCryptoAssetLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaapFairValueByFairValueHierarchyLevelAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtPlatformOperatorCryptoAssetTable" xlink:to="loc_us-gaapFairValueByFairValueHierarchyLevelAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaapFairValueMeasurementsFairValueHierarchyDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapFairValueByFairValueHierarchyLevelAxis" xlink:to="loc_us-gaapFairValueMeasurementsFairValueHierarchyDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaapFairValueInputsLevel1Member" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapFairValueMeasurementsFairValueHierarchyDomain" xlink:to="loc_us-gaapFairValueInputsLevel1Member" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaapFairValueInputsLevel2Member" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapFairValueMeasurementsFairValueHierarchyDomain" xlink:to="loc_us-gaapFairValueInputsLevel2Member" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaapFairValueInputsLevel3Member" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapFairValueMeasurementsFairValueHierarchyDomain" xlink:to="loc_us-gaapFairValueInputsLevel3Member" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaapStatementEquityComponentsAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtPlatformOperatorCryptoAssetTable" xlink:to="loc_us-gaapStatementEquityComponentsAxis" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaapEquityComponentDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementEquityComponentsAxis" xlink:to="loc_us-gaapEquityComponentDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaapCommonStockMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityComponentDomain" xlink:to="loc_us-gaapCommonStockMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WarrantMember" xlink:label="loc_us-gaapWarrantMember" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityComponentDomain" xlink:to="loc_us-gaapWarrantMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_InvestmentSecuritiesAtFairValue" xlink:label="loc_MDBHInvestmentSecuritiesAtFairValue" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtPlatformOperatorCryptoAssetLineItems" xlink:to="loc_MDBHInvestmentSecuritiesAtFairValue" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_InvestmentSecuritiesAtFairValueHeldByNonlicensedBrokerDealer" xlink:label="loc_MDBHInvestmentSecuritiesAtFairValueHeldByNonlicensedBrokerDealer" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtPlatformOperatorCryptoAssetLineItems" xlink:to="loc_MDBHInvestmentSecuritiesAtFairValueHeldByNonlicensedBrokerDealer" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfReconciliationOfFairValueMeasurementsWithinLevel3OfFairValueHierarchyDetails" xlink:title="999046 - Disclosure - Schedule of Reconciliation of Fair Value Measurements Within Level 3 of Fair Value Hierarchy (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:label="loc_us-gaapFairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapFairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPeriodIncreaseDecrease" xlink:label="loc_us-gaapFairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPeriodIncreaseDecrease" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapFairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPeriodIncreaseDecrease" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_FairValueMeasurementWithUnobservableInputReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss" xlink:label="loc_MDBHFairValueMeasurementWithUnobservableInputReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHFairValueMeasurementWithUnobservableInputReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:label="loc_us-gaapFairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_2" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapFairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfSignificantUnobservableInputsRelatedToMaterialComponentsOfLevel3WarrantsDetails" xlink:title="999047 - Disclosure - Schedule of Significant Unobservable Inputs Related to Material Components of Level 3 Warrants (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaapPropertyPlantAndEquipmentLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable" xlink:to="loc_us-gaapPropertyPlantAndEquipmentLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaapFairValueByFairValueHierarchyLevelAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable" xlink:to="loc_us-gaapFairValueByFairValueHierarchyLevelAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaapFairValueMeasurementsFairValueHierarchyDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapFairValueByFairValueHierarchyLevelAxis" xlink:to="loc_us-gaapFairValueMeasurementsFairValueHierarchyDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaapFairValueInputsLevel3Member" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapFairValueMeasurementsFairValueHierarchyDomain" xlink:to="loc_us-gaapFairValueInputsLevel3Member" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis" xlink:label="loc_srtRangeAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable" xlink:to="loc_srtRangeAxis" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember" xlink:label="loc_srtRangeMember" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRangeAxis" xlink:to="loc_srtRangeMember" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember" xlink:label="loc_srtMinimumMember" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRangeMember" xlink:to="loc_srtMinimumMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember" xlink:label="loc_srtMaximumMember" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRangeMember" xlink:to="loc_srtMaximumMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_WeightedAverageMember" xlink:label="loc_srtWeightedAverageMember" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRangeMember" xlink:to="loc_srtWeightedAverageMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WarrantsAndRightsOutstanding" xlink:label="loc_us-gaapWarrantsAndRightsOutstanding" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentLineItems" xlink:to="loc_us-gaapWarrantsAndRightsOutstanding" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WarrantsAndRightsOutstandingMeasurementInput" xlink:label="loc_us-gaapWarrantsAndRightsOutstandingMeasurementInput" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentLineItems" xlink:to="loc_us-gaapWarrantsAndRightsOutstandingMeasurementInput" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfEstimatedUsefulLivesOfPropertyAndEquipmentDetails" xlink:title="999048 - Disclosure - Schedule of Estimated Useful Lives of Property and Equipment (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaapPropertyPlantAndEquipmentLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable" xlink:to="loc_us-gaapPropertyPlantAndEquipmentLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaapPropertyPlantAndEquipmentByTypeAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable" xlink:to="loc_us-gaapPropertyPlantAndEquipmentByTypeAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaapPropertyPlantAndEquipmentTypeDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentByTypeAxis" xlink:to="loc_us-gaapPropertyPlantAndEquipmentTypeDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_LaboratoryEquipmentMember" xlink:label="loc_MDBHLaboratoryEquipmentMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentTypeDomain" xlink:to="loc_MDBHLaboratoryEquipmentMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DevelopedSoftwareMember" xlink:label="loc_MDBHDevelopedSoftwareMember" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentTypeDomain" xlink:to="loc_MDBHDevelopedSoftwareMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FurnitureAndFixturesMember" xlink:label="loc_us-gaapFurnitureAndFixturesMember" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentTypeDomain" xlink:to="loc_us-gaapFurnitureAndFixturesMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeaseholdImprovementsMember" xlink:label="loc_us-gaapLeaseholdImprovementsMember" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentTypeDomain" xlink:to="loc_us-gaapLeaseholdImprovementsMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="loc_us-gaapPropertyPlantAndEquipmentUsefulLife" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentLineItems" xlink:to="loc_us-gaapPropertyPlantAndEquipmentUsefulLife" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLifeDescriptionOfTermExtensibleEnumeration" xlink:label="loc_us-gaapPropertyPlantAndEquipmentUsefulLifeDescriptionOfTermExtensibleEnumeration" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentLineItems" xlink:to="loc_us-gaapPropertyPlantAndEquipmentUsefulLifeDescriptionOfTermExtensibleEnumeration" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfPropertyAndEquipmentDetails" xlink:title="999049 - Disclosure - Schedule of Property And Equipment (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedComputerSoftwareGross" xlink:label="loc_us-gaapCapitalizedComputerSoftwareGross" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapCapitalizedComputerSoftwareGross" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaapPropertyPlantAndEquipmentGross" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapPropertyPlantAndEquipmentGross" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaapAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaapPropertyPlantAndEquipmentNet" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapPropertyPlantAndEquipmentNet" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfChangesInDeferredRevenueDetails" xlink:title="999050 - Disclosure - Schedule of Changes in Deferred Revenue (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerLiability" xlink:label="loc_us-gaapContractWithCustomerLiability" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapContractWithCustomerLiability" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ContractWithCustomerLiabilityAmountsBilledNotRecognized" xlink:label="loc_MDBHContractWithCustomerLiabilityAmountsBilledNotRecognized" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHContractWithCustomerLiabilityAmountsBilledNotRecognized" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:label="loc_us-gaapContractWithCustomerLiabilityRevenueRecognized" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapContractWithCustomerLiabilityRevenueRecognized" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerLiability" xlink:label="loc_us-gaapContractWithCustomerLiability_2" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapContractWithCustomerLiability_2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/SummaryOfGrantsReceivableActivityDetails" xlink:title="999051 - Disclosure - Summary of Grants Receivable Activity (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GrantsReceivable" xlink:label="loc_us-gaapGrantsReceivable" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapGrantsReceivable" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_GrantCostsExpensed" xlink:label="loc_MDBHGrantCostsExpensed" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHGrantCostsExpensed" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_GrantsForEquipmentPurchased" xlink:label="loc_MDBHGrantsForEquipmentPurchased" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHGrantsForEquipmentPurchased" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_GrantFees" xlink:label="loc_MDBHGrantFees" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHGrantFees" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_GrantFundsReceived" xlink:label="loc_MDBHGrantFundsReceived" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHGrantFundsReceived" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_RemovalOfBalanceDueToDeconsolidation" xlink:label="loc_MDBHRemovalOfBalanceDueToDeconsolidation" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_MDBHRemovalOfBalanceDueToDeconsolidation" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GrantsReceivable" xlink:label="loc_us-gaapGrantsReceivable_2" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract" xlink:to="loc_us-gaapGrantsReceivable_2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfLong-livedAssetsAndTotalAssetsBySegmentDetails" xlink:title="999052 - Disclosure - Schedule of Long-lived Assets and Total Assets by Segment (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaapSegmentReportingAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaapScheduleOfSegmentReportingInformationBySegmentTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingAbstract" xlink:to="loc_us-gaapScheduleOfSegmentReportingInformationBySegmentTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaapSegmentReportingInformationLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfSegmentReportingInformationBySegmentTable" xlink:to="loc_us-gaapSegmentReportingInformationLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaapStatementBusinessSegmentsAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfSegmentReportingInformationBySegmentTable" xlink:to="loc_us-gaapStatementBusinessSegmentsAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaapSegmentDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementBusinessSegmentsAxis" xlink:to="loc_us-gaapSegmentDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_BrokerDealerAndIntellectualPropertyServiceMember" xlink:label="loc_MDBHBrokerDealerAndIntellectualPropertyServiceMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentDomain" xlink:to="loc_MDBHBrokerDealerAndIntellectualPropertyServiceMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_TechnologyDevelopmentMember" xlink:label="loc_MDBHTechnologyDevelopmentMember" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentDomain" xlink:to="loc_MDBHTechnologyDevelopmentMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_OtherSegmentsMember" xlink:label="loc_MDBHOtherSegmentsMember" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentDomain" xlink:to="loc_MDBHOtherSegmentsMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_EliminationsMember" xlink:label="loc_MDBHEliminationsMember" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentDomain" xlink:to="loc_MDBHEliminationsMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_BrokerDealerIntellectualPropertyServiceMember" xlink:label="loc_MDBHBrokerDealerIntellectualPropertyServiceMember" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentDomain" xlink:to="loc_MDBHBrokerDealerIntellectualPropertyServiceMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsNoncurrent" xlink:label="loc_us-gaapAssetsNoncurrent" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_us-gaapAssetsNoncurrent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets" xlink:label="loc_us-gaapAssets" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_us-gaapAssets" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfStatementOfOperationBySegmentDetails" xlink:title="999053 - Disclosure - Schedule of Statement of Operation by Segment (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaapSegmentReportingAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaapScheduleOfSegmentReportingInformationBySegmentTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingAbstract" xlink:to="loc_us-gaapScheduleOfSegmentReportingInformationBySegmentTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaapSegmentReportingInformationLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfSegmentReportingInformationBySegmentTable" xlink:to="loc_us-gaapSegmentReportingInformationLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaapStatementBusinessSegmentsAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfSegmentReportingInformationBySegmentTable" xlink:to="loc_us-gaapStatementBusinessSegmentsAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaapSegmentDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementBusinessSegmentsAxis" xlink:to="loc_us-gaapSegmentDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_BrokerDealerIntellectualPropertyServiceMember" xlink:label="loc_MDBHBrokerDealerIntellectualPropertyServiceMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentDomain" xlink:to="loc_MDBHBrokerDealerIntellectualPropertyServiceMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_TechnologyDevelopmentMember" xlink:label="loc_MDBHTechnologyDevelopmentMember" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentDomain" xlink:to="loc_MDBHTechnologyDevelopmentMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_OtherSegmentsMember" xlink:label="loc_MDBHOtherSegmentsMember" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentDomain" xlink:to="loc_MDBHOtherSegmentsMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_EliminationsMember" xlink:label="loc_MDBHEliminationsMember" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentDomain" xlink:to="loc_MDBHEliminationsMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLossAbstract" xlink:label="loc_us-gaapOperatingIncomeLossAbstract" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_us-gaapOperatingIncomeLossAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_UnrealizedLossOnInvestmentSecuritiesNetFromLicensedBrokerDealerNotes1And2" xlink:label="loc_MDBHUnrealizedLossOnInvestmentSecuritiesNetFromLicensedBrokerDealerNotes1And2" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingIncomeLossAbstract" xlink:to="loc_MDBHUnrealizedLossOnInvestmentSecuritiesNetFromLicensedBrokerDealerNotes1And2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_InvestmentsSecuritiesAtFairValueHeldByNonlicensedBrokerDealer" xlink:label="loc_MDBHInvestmentsSecuritiesAtFairValueHeldByNonlicensedBrokerDealer" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingIncomeLossAbstract" xlink:to="loc_MDBHInvestmentsSecuritiesAtFairValueHeldByNonlicensedBrokerDealer" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_RealizedInvestmentGainsLossesOne" xlink:label="loc_MDBHRealizedInvestmentGainsLossesOne" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingIncomeLossAbstract" xlink:to="loc_MDBHRealizedInvestmentGainsLossesOne" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FeeIncome" xlink:label="loc_us-gaapFeeIncome" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingIncomeLossAbstract" xlink:to="loc_us-gaapFeeIncome" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ImpairmentOfInvestmentSecurities" xlink:label="loc_MDBHImpairmentOfInvestmentSecurities" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingIncomeLossAbstract" xlink:to="loc_MDBHImpairmentOfInvestmentSecurities" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherOperatingIncome" xlink:label="loc_us-gaapOtherOperatingIncome" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingIncomeLossAbstract" xlink:to="loc_us-gaapOtherOperatingIncome" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaapOperatingIncomeLoss" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingIncomeLossAbstract" xlink:to="loc_us-gaapOperatingIncomeLoss" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_us-gaapOperatingExpensesAbstract" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_us-gaapOperatingExpensesAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpenseAbstract" xlink:label="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingExpensesAbstract" xlink:to="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LaborAndRelatedExpense" xlink:label="loc_us-gaapLaborAndRelatedExpense" />
      <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" xlink:to="loc_us-gaapLaborAndRelatedExpense" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingExpense" xlink:label="loc_us-gaapOtherNonoperatingExpense" />
      <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" xlink:to="loc_us-gaapOtherNonoperatingExpense" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfessionalFees" xlink:label="loc_us-gaapProfessionalFees" />
      <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" xlink:to="loc_us-gaapProfessionalFees" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommunicationsAndInformationTechnology" xlink:label="loc_us-gaapCommunicationsAndInformationTechnology" />
      <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" xlink:to="loc_us-gaapCommunicationsAndInformationTechnology" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ClearingAndOtherCharges" xlink:label="loc_MDBHClearingAndOtherCharges" />
      <link:presentationArc order="140" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" xlink:to="loc_MDBHClearingAndOtherCharges" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherGeneralAndAdministrativeExpense" xlink:label="loc_us-gaapOtherGeneralAndAdministrativeExpense" />
      <link:presentationArc order="150" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" xlink:to="loc_us-gaapOtherGeneralAndAdministrativeExpense" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="loc_us-gaapGeneralAndAdministrativeExpense" />
      <link:presentationArc order="160" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" xlink:to="loc_us-gaapGeneralAndAdministrativeExpense" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="loc_us-gaapResearchAndDevelopmentExpense" />
      <link:presentationArc order="170" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapGeneralAndAdministrativeExpenseAbstract" xlink:to="loc_us-gaapResearchAndDevelopmentExpense" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaapOperatingExpenses" />
      <link:presentationArc order="180" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingExpensesAbstract" xlink:to="loc_us-gaapOperatingExpenses" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_NetOperatingIncomeLoss" xlink:label="loc_MDBHNetOperatingIncomeLoss" />
      <link:presentationArc order="190" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_MDBHNetOperatingIncomeLoss" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncomeExpenseAbstract" xlink:label="loc_us-gaapOtherNonoperatingIncomeExpenseAbstract" />
      <link:presentationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_us-gaapOtherNonoperatingIncomeExpenseAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_MiscellaneousIncome" xlink:label="loc_MDBHMiscellaneousIncome" />
      <link:presentationArc order="210" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_MDBHMiscellaneousIncome" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseNonoperating" xlink:label="loc_us-gaapInterestExpenseNonoperating" />
      <link:presentationArc order="220" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_us-gaapInterestExpenseNonoperating" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncome" xlink:label="loc_us-gaapOtherNonoperatingIncome" />
      <link:presentationArc order="230" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_us-gaapOtherNonoperatingIncome" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_GainRelatedToDilutionEvents" xlink:label="loc_MDBHGainRelatedToDilutionEvents" />
      <link:presentationArc order="240" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_MDBHGainRelatedToDilutionEvents" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeconsolidationGainOrLossAmount" xlink:label="loc_us-gaapDeconsolidationGainOrLossAmount" />
      <link:presentationArc order="250" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_us-gaapDeconsolidationGainOrLossAmount" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" />
      <link:presentationArc order="260" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaapIncomeTaxExpenseBenefit" />
      <link:presentationArc order="270" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_us-gaapIncomeTaxExpenseBenefit" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestment" xlink:label="loc_MDBHIncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestment" />
      <link:presentationArc order="280" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_MDBHIncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestment" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_IncomeLossFromEquityMethodInvestment" xlink:label="loc_MDBHIncomeLossFromEquityMethodInvestment" />
      <link:presentationArc order="290" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_MDBHIncomeLossFromEquityMethodInvestment" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaapProfitLoss" />
      <link:presentationArc order="300" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_us-gaapProfitLoss" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="loc_us-gaapNetIncomeLossAttributableToNoncontrollingInterest" />
      <link:presentationArc order="310" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_us-gaapNetIncomeLossAttributableToNoncontrollingInterest" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaapNetIncomeLoss" />
      <link:presentationArc order="320" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_us-gaapNetIncomeLoss" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrealizedGainLossOnInvestments" xlink:label="loc_us-gaapUnrealizedGainLossOnInvestments" />
      <link:presentationArc order="330" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingInformationLineItems" xlink:to="loc_us-gaapUnrealizedGainLossOnInvestments" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/SegmentReportingDetailsNarrative" xlink:title="999054 - Disclosure - Segment Reporting (Details Narrative)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaapSegmentReportingAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfReportableSegments" xlink:label="loc_us-gaapNumberOfReportableSegments" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentReportingAbstract" xlink:to="loc_us-gaapNumberOfReportableSegments" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfEquityAndNon-controllingInterestsDetails" xlink:title="999055 - Disclosure - Schedule of Equity and Non-Controlling Interests (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaapEquityAbstract" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_EquityTable" xlink:label="loc_MDBHEquityTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityAbstract" xlink:to="loc_MDBHEquityTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_Equity" xlink:label="loc_MDBHEquity" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHEquityTable" xlink:to="loc_MDBHEquity" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_OwnershipAxis" xlink:label="loc_srtOwnershipAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHEquityTable" xlink:to="loc_srtOwnershipAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_OwnershipDomain" xlink:label="loc_srtOwnershipDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtOwnershipAxis" xlink:to="loc_srtOwnershipDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ExozymeTechnologiesIncMember" xlink:label="loc_MDBHExozymeTechnologiesIncMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtOwnershipDomain" xlink:to="loc_MDBHExozymeTechnologiesIncMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaapNetIncomeLoss" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHEquity" xlink:to="loc_us-gaapNetIncomeLoss" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_WeightedAverageNonControllingPercentage" xlink:label="loc_MDBHWeightedAverageNonControllingPercentage" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHEquity" xlink:to="loc_MDBHWeightedAverageNonControllingPercentage" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="loc_us-gaapNetIncomeLossAttributableToNoncontrollingInterest" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHEquity" xlink:to="loc_us-gaapNetIncomeLossAttributableToNoncontrollingInterest" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MinorityInterest" xlink:label="loc_us-gaapMinorityInterest" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHEquity" xlink:to="loc_us-gaapMinorityInterest" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DueToDeconsolidation" xlink:label="loc_MDBHDueToDeconsolidation" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHEquity" xlink:to="loc_MDBHDueToDeconsolidation" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ShareBasedCompensationToNonControllingInterest" xlink:label="loc_MDBHShareBasedCompensationToNonControllingInterest" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHEquity" xlink:to="loc_MDBHShareBasedCompensationToNonControllingInterest" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_OwnershipChangeOfNoncontrollingInterest" xlink:label="loc_MDBHOwnershipChangeOfNoncontrollingInterest" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHEquity" xlink:to="loc_MDBHOwnershipChangeOfNoncontrollingInterest" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MinorityInterest" xlink:label="loc_us-gaapMinorityInterest_2" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHEquity" xlink:to="loc_us-gaapMinorityInterest_2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/EquityAndNon-controllingInterestsDetailsNarrative" xlink:title="999056 - Disclosure - Equity and Non-Controlling Interests (Details Narrative)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaapEquityAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_us-gaapScheduleOfStockByClassTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityAbstract" xlink:to="loc_us-gaapScheduleOfStockByClassTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockLineItems" xlink:label="loc_us-gaapClassOfStockLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfStockByClassTable" xlink:to="loc_us-gaapClassOfStockLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaapStatementClassOfStockAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfStockByClassTable" xlink:to="loc_us-gaapStatementClassOfStockAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaapClassOfStockDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementClassOfStockAxis" xlink:to="loc_us-gaapClassOfStockDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaapCommonClassAMember" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockDomain" xlink:to="loc_us-gaapCommonClassAMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaapCommonClassBMember" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockDomain" xlink:to="loc_us-gaapCommonClassBMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:label="loc_us-gaapSubsidiarySaleOfStockAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfStockByClassTable" xlink:to="loc_us-gaapSubsidiarySaleOfStockAxis" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:label="loc_us-gaapSaleOfStockNameOfTransactionDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsidiarySaleOfStockAxis" xlink:to="loc_us-gaapSaleOfStockNameOfTransactionDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IPOMember" xlink:label="loc_us-gaapIPOMember" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSaleOfStockNameOfTransactionDomain" xlink:to="loc_us-gaapIPOMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_OwnershipAxis" xlink:label="loc_srtOwnershipAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfStockByClassTable" xlink:to="loc_srtOwnershipAxis" order="30" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_OwnershipDomain" xlink:label="loc_srtOwnershipDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtOwnershipAxis" xlink:to="loc_srtOwnershipDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_MinnesotaOneMember" xlink:label="loc_MDBHMinnesotaOneMember" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtOwnershipDomain" xlink:to="loc_MDBHMinnesotaOneMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ExozymeTechnologiesIncMember" xlink:label="loc_MDBHExozymeTechnologiesIncMember" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtOwnershipDomain" xlink:to="loc_MDBHExozymeTechnologiesIncMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis" xlink:label="loc_srtRangeAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfStockByClassTable" xlink:to="loc_srtRangeAxis" order="40" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember" xlink:label="loc_srtRangeMember" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRangeAxis" xlink:to="loc_srtRangeMember" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember" xlink:label="loc_srtMinimumMember" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRangeMember" xlink:to="loc_srtMinimumMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember" xlink:label="loc_srtMaximumMember" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRangeMember" xlink:to="loc_srtMaximumMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_WeightedAverageMember" xlink:label="loc_srtWeightedAverageMember" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRangeMember" xlink:to="loc_srtWeightedAverageMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:label="loc_srtScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfStockByClassTable" xlink:to="loc_srtScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" order="50" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_EquityMethodInvesteeNameDomain" xlink:label="loc_srtEquityMethodInvesteeNameDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:to="loc_srtEquityMethodInvesteeNameDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_MinnesotaOneMember" xlink:label="loc_MDBHMinnesotaOneMember_2" />
      <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtEquityMethodInvesteeNameDomain" xlink:to="loc_MDBHMinnesotaOneMember_2" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ExozymeTechnologiesIncMember" xlink:label="loc_MDBHExozymeTechnologiesIncMember_2" />
      <link:presentationArc order="150" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtEquityMethodInvesteeNameDomain" xlink:to="loc_MDBHExozymeTechnologiesIncMember_2" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_us-gaapPreferredStockSharesAuthorized" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockLineItems" xlink:to="loc_us-gaapPreferredStockSharesAuthorized" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="loc_us-gaapPreferredStockSharesIssued" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockLineItems" xlink:to="loc_us-gaapPreferredStockSharesIssued" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="loc_us-gaapPreferredStockSharesOutstanding" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockLineItems" xlink:to="loc_us-gaapPreferredStockSharesOutstanding" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaapCommonStockSharesAuthorized" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockLineItems" xlink:to="loc_us-gaapCommonStockSharesAuthorized" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaapCommonStockSharesIssued" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockLineItems" xlink:to="loc_us-gaapCommonStockSharesIssued" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaapCommonStockSharesOutstanding" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockLineItems" xlink:to="loc_us-gaapCommonStockSharesOutstanding" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:label="loc_us-gaapSaleOfStockNumberOfSharesIssuedInTransaction" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockLineItems" xlink:to="loc_us-gaapSaleOfStockNumberOfSharesIssuedInTransaction" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MinorityInterestOwnershipPercentageByParent" xlink:label="loc_us-gaapMinorityInterestOwnershipPercentageByParent" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockLineItems" xlink:to="loc_us-gaapMinorityInterestOwnershipPercentageByParent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:label="loc_us-gaapMinorityInterestOwnershipPercentageByNoncontrollingOwners" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockLineItems" xlink:to="loc_us-gaapMinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromContributionsFromParent" xlink:label="loc_us-gaapProceedsFromContributionsFromParent" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockLineItems" xlink:to="loc_us-gaapProceedsFromContributionsFromParent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:label="loc_us-gaapEquityMethodInvestmentOwnershipPercentage" />
      <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockLineItems" xlink:to="loc_us-gaapEquityMethodInvestmentOwnershipPercentage" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/DeconsolidationDetailsNarrative" xlink:title="999057 - Disclosure - Deconsolidation (Details Narrative)">
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DeconsolidationAbstract" xlink:label="loc_MDBHDeconsolidationAbstract" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DeconsolidationTable" xlink:label="loc_MDBHDeconsolidationTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDeconsolidationAbstract" xlink:to="loc_MDBHDeconsolidationTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDeconsolidationTable" xlink:to="loc_us-gaapStatementLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis" xlink:label="loc_deiLegalEntityAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDeconsolidationTable" xlink:to="loc_deiLegalEntityAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain" xlink:label="loc_deiEntityDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiLegalEntityAxis" xlink:to="loc_deiEntityDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ExozymesIncMember" xlink:label="loc_MDBHExozymesIncMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiEntityDomain" xlink:to="loc_MDBHExozymesIncMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainOrLossOnSaleOfPreviouslyUnissuedStockByEquityInvestee" xlink:label="loc_us-gaapGainOrLossOnSaleOfPreviouslyUnissuedStockByEquityInvestee" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapGainOrLossOnSaleOfPreviouslyUnissuedStockByEquityInvestee" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaapNetIncomeLoss" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapNetIncomeLoss" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaapAssetsCurrent" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapAssetsCurrent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets" xlink:label="loc_us-gaapAssets" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapAssets" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaapLiabilitiesCurrent" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapLiabilitiesCurrent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaapLiabilities" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapLiabilities" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Revenues" xlink:label="loc_us-gaapRevenues" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapRevenues" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfConsolidatedBalanceSheetDetails" xlink:title="999058 - Disclosure - Schedule of Consolidated Balance Sheet (Details)">
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ScheduleOfConsolidatedBalanceSheetAbstract" xlink:label="loc_MDBHScheduleOfConsolidatedBalanceSheetAbstract" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ScheduleOfConsolidatedBalanceSheetTable" xlink:label="loc_MDBHScheduleOfConsolidatedBalanceSheetTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHScheduleOfConsolidatedBalanceSheetAbstract" xlink:to="loc_MDBHScheduleOfConsolidatedBalanceSheetTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHScheduleOfConsolidatedBalanceSheetTable" xlink:to="loc_us-gaapStatementLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidatedEntitiesAxis" xlink:label="loc_srtConsolidatedEntitiesAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHScheduleOfConsolidatedBalanceSheetTable" xlink:to="loc_srtConsolidatedEntitiesAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidatedEntitiesDomain" xlink:label="loc_srtConsolidatedEntitiesDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtConsolidatedEntitiesAxis" xlink:to="loc_srtConsolidatedEntitiesDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ExozymesMember" xlink:label="loc_MDBHExozymesMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtConsolidatedEntitiesDomain" xlink:to="loc_MDBHExozymesMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaapCashAndCashEquivalentsAtCarryingValue" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapCashAndCashEquivalentsAtCarryingValue" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GrantsReceivable" xlink:label="loc_us-gaapGrantsReceivable" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapGrantsReceivable" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredOfferingCosts" xlink:label="loc_us-gaapDeferredOfferingCosts" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapDeferredOfferingCosts" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaapPropertyPlantAndEquipmentNet" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapPropertyPlantAndEquipmentNet" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaapOperatingLeaseRightOfUseAsset" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapOperatingLeaseRightOfUseAsset" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets" xlink:label="loc_us-gaapAssets" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapAssets" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableOtherCurrentAndNoncurrent" xlink:label="loc_us-gaapAccountsPayableOtherCurrentAndNoncurrent" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapAccountsPayableOtherCurrentAndNoncurrent" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedLiabilitiesCurrentAndNoncurrent" xlink:label="loc_us-gaapAccruedLiabilitiesCurrentAndNoncurrent" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapAccruedLiabilitiesCurrentAndNoncurrent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherReceivables" xlink:label="loc_us-gaapOtherReceivables" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapOtherReceivables" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DeferredGrantReimbursement" xlink:label="loc_MDBHDeferredGrantReimbursement" />
      <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_MDBHDeferredGrantReimbursement" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiability" xlink:label="loc_us-gaapOperatingLeaseLiability" />
      <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapOperatingLeaseLiability" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaapLiabilities" />
      <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapLiabilities" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaapCommonStockValue" />
      <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapCommonStockValue" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaapAdditionalPaidInCapital" />
      <link:presentationArc order="140" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapAdditionalPaidInCapital" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaapRetainedEarningsAccumulatedDeficit" />
      <link:presentationArc order="150" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapRetainedEarningsAccumulatedDeficit" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaapStockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" />
      <link:presentationArc order="160" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapStockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaapLiabilitiesAndStockholdersEquity" />
      <link:presentationArc order="170" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapLiabilitiesAndStockholdersEquity" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfGainOnDeconsolidationDetails" xlink:title="999059 - Disclosure - Schedule of Gain on Deconsolidation (Details)">
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ScheduleOfGainOnDeconsolidationAbstract" xlink:label="loc_MDBHScheduleOfGainOnDeconsolidationAbstract" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ScheduleOfGainOnDeconsolidationTable" xlink:label="loc_MDBHScheduleOfGainOnDeconsolidationTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHScheduleOfGainOnDeconsolidationAbstract" xlink:to="loc_MDBHScheduleOfGainOnDeconsolidationTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHScheduleOfGainOnDeconsolidationTable" xlink:to="loc_us-gaapStatementLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis" xlink:label="loc_deiLegalEntityAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHScheduleOfGainOnDeconsolidationTable" xlink:to="loc_deiLegalEntityAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain" xlink:label="loc_deiEntityDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiLegalEntityAxis" xlink:to="loc_deiEntityDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ExozymesIncMember" xlink:label="loc_MDBHExozymesIncMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiEntityDomain" xlink:to="loc_MDBHExozymesIncMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentOwnedBalanceShares" xlink:label="loc_us-gaapInvestmentOwnedBalanceShares" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapInvestmentOwnedBalanceShares" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharePrice" xlink:label="loc_us-gaapSharePrice" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapSharePrice" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAdjustmentOfWarrants" xlink:label="loc_us-gaapFairValueAdjustmentOfWarrants" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapFairValueAdjustmentOfWarrants" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestmentsFairValueDisclosure" xlink:label="loc_us-gaapEquityMethodInvestmentsFairValueDisclosure" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapEquityMethodInvestmentsFairValueDisclosure" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashEquivalentsAtCarryingValue" xlink:label="loc_us-gaapCashEquivalentsAtCarryingValue" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapCashEquivalentsAtCarryingValue" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_CarryingValueOfAssets" xlink:label="loc_MDBHCarryingValueOfAssets" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_MDBHCarryingValueOfAssets" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_LessCarryingValueOfFormerInvestment" xlink:label="loc_MDBHLessCarryingValueOfFormerInvestment" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_MDBHLessCarryingValueOfFormerInvestment" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_CarryingValueOfWarrants" xlink:label="loc_MDBHCarryingValueOfWarrants" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_MDBHCarryingValueOfWarrants" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeconsolidationGainOrLossAmount" xlink:label="loc_us-gaapDeconsolidationGainOrLossAmount" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapDeconsolidationGainOrLossAmount" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfEquityMethodInvestmentDetails" xlink:title="999060 - Disclosure - Schedule of Equity Method Investment (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract" xlink:label="loc_us-gaapEquityMethodInvestmentsAndJointVenturesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestments" xlink:label="loc_us-gaapEquityMethodInvestments" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityMethodInvestmentsAndJointVenturesAbstract" xlink:to="loc_us-gaapEquityMethodInvestments" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainOrLossOnSaleOfPreviouslyUnissuedStockByEquityInvestee" xlink:label="loc_us-gaapGainOrLossOnSaleOfPreviouslyUnissuedStockByEquityInvestee" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityMethodInvestmentsAndJointVenturesAbstract" xlink:to="loc_us-gaapGainOrLossOnSaleOfPreviouslyUnissuedStockByEquityInvestee" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_EquityMethodInvestmentsGainRelatedToDilutionEvents" xlink:label="loc_MDBHEquityMethodInvestmentsGainRelatedToDilutionEvents" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityMethodInvestmentsAndJointVenturesAbstract" xlink:to="loc_MDBHEquityMethodInvestmentsGainRelatedToDilutionEvents" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestments" xlink:label="loc_us-gaapEquityMethodInvestments_2" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityMethodInvestmentsAndJointVenturesAbstract" xlink:to="loc_us-gaapEquityMethodInvestments_2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/EquityMethodInvestmentDetailsNarrative" xlink:title="999061 - Disclosure - Equity Method Investment (Details Narrative)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract" xlink:label="loc_us-gaapEquityMethodInvestmentsAndJointVenturesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:label="loc_us-gaapScheduleOfEquityMethodInvestmentsTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityMethodInvestmentsAndJointVenturesAbstract" xlink:to="loc_us-gaapScheduleOfEquityMethodInvestmentsTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:label="loc_us-gaapScheduleOfEquityMethodInvestmentsLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfEquityMethodInvestmentsTable" xlink:to="loc_us-gaapScheduleOfEquityMethodInvestmentsLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:label="loc_srtScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfEquityMethodInvestmentsTable" xlink:to="loc_srtScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_EquityMethodInvesteeNameDomain" xlink:label="loc_srtEquityMethodInvesteeNameDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:to="loc_srtEquityMethodInvesteeNameDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ExozymesMember" xlink:label="loc_MDBHExozymesMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtEquityMethodInvesteeNameDomain" xlink:to="loc_MDBHExozymesMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_InvizyneTechnologiesIncMember" xlink:label="loc_MDBHInvizyneTechnologiesIncMember" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtEquityMethodInvesteeNameDomain" xlink:to="loc_MDBHInvizyneTechnologiesIncMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis" xlink:label="loc_srtRangeAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfEquityMethodInvestmentsTable" xlink:to="loc_srtRangeAxis" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember" xlink:label="loc_srtRangeMember" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRangeAxis" xlink:to="loc_srtRangeMember" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember" xlink:label="loc_srtMaximumMember" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRangeMember" xlink:to="loc_srtMaximumMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:label="loc_us-gaapEquityMethodInvestmentOwnershipPercentage" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaapEquityMethodInvestmentOwnershipPercentage" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaapNetIncomeLoss" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaapNetIncomeLoss" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentOwnedBalanceShares" xlink:label="loc_us-gaapInvestmentOwnedBalanceShares" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaapInvestmentOwnedBalanceShares" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfRestrictedStockUnitActivityDetails" xlink:title="999062 - Disclosure - Schedule of Restricted Stock Unit Activity (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaapAwardTypeAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="loc_us-gaapAwardTypeAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAwardTypeAxis" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_TimeBasedMember" xlink:label="loc_MDBHTimeBasedMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_MDBHTimeBasedMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_MarketBasedMember" xlink:label="loc_MDBHMarketBasedMember" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_MDBHMarketBasedMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriod" xlink:label="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriod" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriod" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExchangedAndModifiedInPeriod" xlink:label="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExchangedAndModifiedInPeriod" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExchangedAndModifiedInPeriod" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExchangedAndModifiedWeightedAverageGrantDateFairValue" xlink:label="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExchangedAndModifiedWeightedAverageGrantDateFairValue" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExchangedAndModifiedWeightedAverageGrantDateFairValue" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredAndCancelledInPeriod" xlink:label="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredAndCancelledInPeriod" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredAndCancelledInPeriod" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredAndCancelledWeightedAverageGrantDateFairValue" xlink:label="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredAndCancelledWeightedAverageGrantDateFairValue" />
      <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredAndCancelledWeightedAverageGrantDateFairValue" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_2" />
      <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_2" />
      <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedVestedAndExpectedToVestExercisableNumber" xlink:label="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedVestedAndExpectedToVestExercisableNumber" />
      <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedVestedAndExpectedToVestExercisableNumber" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInVestedAndExpectedToVestExercisableWeightedAverageExercisePrice" xlink:label="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInVestedAndExpectedToVestExercisableWeightedAverageExercisePrice" />
      <link:presentationArc order="140" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInVestedAndExpectedToVestExercisableWeightedAverageExercisePrice" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfTime-basedStockOptionActivityDetails" xlink:title="999063 - Disclosure - Schedule of Time-Based Stock Option Activity (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaapAwardTypeAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="loc_us-gaapAwardTypeAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAwardTypeAxis" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_TimeBasedMember" xlink:label="loc_MDBHTimeBasedMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_MDBHTimeBasedMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExchangedAndModifiedInPeriod" xlink:label="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExchangedAndModifiedInPeriod" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExchangedAndModifiedInPeriod" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExchangedAndModifiedInPeriodWeightedAverageExercisePrice" xlink:label="loc_MDBHShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExchangedAndModifiedInPeriodWeightedAverageExercisePrice" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_MDBHShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExchangedAndModifiedInPeriodWeightedAverageExercisePrice" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExchangedWeightedAverageRemainingContractualTerm2" xlink:label="loc_MDBHSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExchangedWeightedAverageRemainingContractualTerm2" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_MDBHSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExchangedWeightedAverageRemainingContractualTerm2" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="loc_us-gaapStockIssuedDuringPeriodSharesStockOptionsExercised" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapStockIssuedDuringPeriodSharesStockOptionsExercised" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_2" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_2" />
      <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:label="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" />
      <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" />
      <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" />
      <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:label="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" />
      <link:presentationArc order="140" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfMarket-basedStockOptionActivityDetails" xlink:title="999064 - Disclosure - Schedule of Market-Based Stock Option Activity (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaapAwardTypeAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="loc_us-gaapAwardTypeAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAwardTypeAxis" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_MarketBasedMember" xlink:label="loc_MDBHMarketBasedMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_MDBHMarketBasedMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExchangedAndModifiedInPeriod" xlink:label="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExchangedAndModifiedInPeriod" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExchangedAndModifiedInPeriod" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExchangedAndModifiedInPeriodWeightedAverageExercisePrice" xlink:label="loc_MDBHShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExchangedAndModifiedInPeriodWeightedAverageExercisePrice" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_MDBHShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExchangedAndModifiedInPeriodWeightedAverageExercisePrice" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingExchangedAndModifiedWeightedAverageRemainingContractualTerm1" xlink:label="loc_MDBHSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingExchangedAndModifiedWeightedAverageRemainingContractualTerm1" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_MDBHSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingExchangedAndModifiedWeightedAverageRemainingContractualTerm1" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="loc_us-gaapStockIssuedDuringPeriodSharesStockOptionsExercised" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapStockIssuedDuringPeriodSharesStockOptionsExercised" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_2" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_2" />
      <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:label="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" />
      <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" />
      <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" />
      <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/Stock-basedCompensationDetailsNarrative" xlink:title="999065 - Disclosure - Stock-Based Compensation (Details Narrative)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaapAwardTypeAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="loc_us-gaapAwardTypeAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAwardTypeAxis" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaapRestrictedStockUnitsRSUMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaapRestrictedStockUnitsRSUMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_MarketBasedMember" xlink:label="loc_MDBHMarketBasedMember" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_MDBHMarketBasedMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_TimeBasedMember" xlink:label="loc_MDBHTimeBasedMember" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_MDBHTimeBasedMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:label="loc_us-gaapSubsidiarySaleOfStockAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="loc_us-gaapSubsidiarySaleOfStockAxis" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:label="loc_us-gaapSaleOfStockNameOfTransactionDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsidiarySaleOfStockAxis" xlink:to="loc_us-gaapSaleOfStockNameOfTransactionDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrivatePlacementMember" xlink:label="loc_us-gaapPrivatePlacementMember" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSaleOfStockNameOfTransactionDomain" xlink:to="loc_us-gaapPrivatePlacementMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOtherDescription" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOtherDescription" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOtherDescription" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredAndCancelledInPeriod" xlink:label="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredAndCancelledInPeriod" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_MDBHShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredAndCancelledInPeriod" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="loc_us-gaapEmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapEmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:label="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:label="loc_us-gaapStockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapStockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross" xlink:label="loc_us-gaapStockIssuedDuringPeriodValueRestrictedStockAwardGross" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapStockIssuedDuringPeriodValueRestrictedStockAwardGross" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:label="loc_us-gaapEmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" />
      <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapEmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_SharebasedCompensationArrangementBySharebasedPaymentAwardAmortizedAmount" xlink:label="loc_MDBHSharebasedCompensationArrangementBySharebasedPaymentAwardAmortizedAmount" />
      <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_MDBHSharebasedCompensationArrangementBySharebasedPaymentAwardAmortizedAmount" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_us-gaapEmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" />
      <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapEmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockOptionExercisePriceIncrease" xlink:label="loc_us-gaapStockOptionExercisePriceIncrease" />
      <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapStockOptionExercisePriceIncrease" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:label="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" />
      <link:presentationArc order="140" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsRemainingStockOptionsVesting" xlink:label="loc_MDBHSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsRemainingStockOptionsVesting" />
      <link:presentationArc order="150" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_MDBHSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsRemainingStockOptionsVesting" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharesIssuedPricePerShare" xlink:label="loc_us-gaapSharesIssuedPricePerShare" />
      <link:presentationArc order="160" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapSharesIssuedPricePerShare" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice" />
      <link:presentationArc order="170" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:label="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" />
      <link:presentationArc order="180" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" />
      <link:presentationArc order="190" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" />
      <link:presentationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" />
      <link:presentationArc order="210" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" />
      <link:presentationArc order="220" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_AveragePricePerShare" xlink:label="loc_MDBHAveragePricePerShare" />
      <link:presentationArc order="230" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_MDBHAveragePricePerShare" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1Vesting" xlink:label="loc_MDBHSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1Vesting" />
      <link:presentationArc order="240" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_MDBHSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1Vesting" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfBasicAndFullyDilutedDetails" xlink:title="999066 - Disclosure - Schedule of Basic and Fully Diluted (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaapEarningsPerShareAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable" xlink:label="loc_us-gaapScheduleOfEarningsPerShareBasicByCommonClassTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEarningsPerShareAbstract" xlink:to="loc_us-gaapScheduleOfEarningsPerShareBasicByCommonClassTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareBasicLineItems" xlink:label="loc_us-gaapEarningsPerShareBasicLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfEarningsPerShareBasicByCommonClassTable" xlink:to="loc_us-gaapEarningsPerShareBasicLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaapStatementClassOfStockAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfEarningsPerShareBasicByCommonClassTable" xlink:to="loc_us-gaapStatementClassOfStockAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaapClassOfStockDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementClassOfStockAxis" xlink:to="loc_us-gaapClassOfStockDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaapCommonClassAMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockDomain" xlink:to="loc_us-gaapCommonClassAMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaapCommonClassBMember" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockDomain" xlink:to="loc_us-gaapCommonClassBMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaapNetIncomeLossAvailableToCommonStockholdersBasic" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEarningsPerShareBasicLineItems" xlink:to="loc_us-gaapNetIncomeLossAvailableToCommonStockholdersBasic" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaapWeightedAverageNumberOfSharesOutstandingBasic" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEarningsPerShareBasicLineItems" xlink:to="loc_us-gaapWeightedAverageNumberOfSharesOutstandingBasic" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaapEarningsPerShareBasic" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEarningsPerShareBasicLineItems" xlink:to="loc_us-gaapEarningsPerShareBasic" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted" xlink:label="loc_us-gaapNetIncomeLossAvailableToCommonStockholdersDiluted" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEarningsPerShareBasicLineItems" xlink:to="loc_us-gaapNetIncomeLossAvailableToCommonStockholdersDiluted" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaapWeightedAverageNumberOfDilutedSharesOutstanding" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEarningsPerShareBasicLineItems" xlink:to="loc_us-gaapWeightedAverageNumberOfDilutedSharesOutstanding" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaapEarningsPerShareDiluted" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEarningsPerShareBasicLineItems" xlink:to="loc_us-gaapEarningsPerShareDiluted" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/EarningsPerShareDetailsNarrative" xlink:title="999067 - Disclosure - Earnings Per Share (Details Narrative)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaapEarningsPerShareAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:label="loc_us-gaapScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEarningsPerShareAbstract" xlink:to="loc_us-gaapScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:label="loc_us-gaapAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:to="loc_us-gaapAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:label="loc_us-gaapAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:to="loc_us-gaapAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AntidilutiveSecuritiesNameDomain" xlink:label="loc_us-gaapAntidilutiveSecuritiesNameDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:to="loc_us-gaapAntidilutiveSecuritiesNameDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WarrantMember" xlink:label="loc_us-gaapWarrantMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAntidilutiveSecuritiesNameDomain" xlink:to="loc_us-gaapWarrantMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="loc_us-gaapAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:to="loc_us-gaapAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/RelatedPartyTransactionsDetailsNarrative" xlink:title="999068 - Disclosure - Related Party Transactions (Details Narrative)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="loc_us-gaapRelatedPartyTransactionsAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="loc_us-gaapScheduleOfRelatedPartyTransactionsByRelatedPartyTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionsAbstract" xlink:to="loc_us-gaapScheduleOfRelatedPartyTransactionsByRelatedPartyTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="loc_us-gaapRelatedPartyTransactionLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="loc_us-gaapRelatedPartyTransactionLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_us-gaapRelatedPartyTransactionsByRelatedPartyAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="loc_us-gaapRelatedPartyTransactionsByRelatedPartyAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaapRelatedPartyDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionsByRelatedPartyAxis" xlink:to="loc_us-gaapRelatedPartyDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ENDRAMember" xlink:label="loc_MDBHENDRAMember" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyDomain" xlink:to="loc_MDBHENDRAMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_ExozymesMember" xlink:label="loc_MDBHExozymesMember" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyDomain" xlink:to="loc_MDBHExozymesMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostsAndExpensesRelatedParty" xlink:label="loc_us-gaapCostsAndExpensesRelatedParty" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionLineItems" xlink:to="loc_us-gaapCostsAndExpensesRelatedParty" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaapOperatingExpenses" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionLineItems" xlink:to="loc_us-gaapOperatingExpenses" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Revenues" xlink:label="loc_us-gaapRevenues" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionLineItems" xlink:to="loc_us-gaapRevenues" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestReceivable" xlink:label="loc_us-gaapInterestReceivable" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionLineItems" xlink:to="loc_us-gaapInterestReceivable" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_AccruedExpenses" xlink:label="loc_MDBHAccruedExpenses" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionLineItems" xlink:to="loc_MDBHAccruedExpenses" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xlink:label="loc_us-gaapStockIssuedDuringPeriodValueIssuedForServices" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionLineItems" xlink:to="loc_us-gaapStockIssuedDuringPeriodValueIssuedForServices" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxesPaid" xlink:label="loc_us-gaapIncomeTaxesPaid" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionLineItems" xlink:to="loc_us-gaapIncomeTaxesPaid" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaapAccruedLiabilitiesCurrent" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionLineItems" xlink:to="loc_us-gaapAccruedLiabilitiesCurrent" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/CommitmentsAndContingenciesDetailsNarrative" xlink:title="999069 - Disclosure - Commitments and Contingencies (Details Narrative)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_CommitmentsAndContingenciesTable" xlink:label="loc_MDBHCommitmentsAndContingenciesTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract" xlink:to="loc_MDBHCommitmentsAndContingenciesTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaapCommitmentsAndContingencies" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHCommitmentsAndContingenciesTable" xlink:to="loc_us-gaapCommitmentsAndContingencies" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_TitleOfIndividualAxis" xlink:label="loc_srtTitleOfIndividualAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHCommitmentsAndContingenciesTable" xlink:to="loc_srtTitleOfIndividualAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:label="loc_srtTitleOfIndividualWithRelationshipToEntityDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtTitleOfIndividualAxis" xlink:to="loc_srtTitleOfIndividualWithRelationshipToEntityDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_PublicVenturesMember" xlink:label="loc_MDBHPublicVenturesMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtTitleOfIndividualWithRelationshipToEntityDomain" xlink:to="loc_MDBHPublicVenturesMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis" xlink:label="loc_srtRangeAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHCommitmentsAndContingenciesTable" xlink:to="loc_srtRangeAxis" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember" xlink:label="loc_srtRangeMember" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRangeAxis" xlink:to="loc_srtRangeMember" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember" xlink:label="loc_srtMinimumMember" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRangeMember" xlink:to="loc_srtMinimumMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaapAwardTypeAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHCommitmentsAndContingenciesTable" xlink:to="loc_us-gaapAwardTypeAxis" order="30" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAwardTypeAxis" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DTCMembershipRequirementsMember" xlink:label="loc_MDBHDTCMembershipRequirementsMember" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_MDBHDTCMembershipRequirementsMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_NetCapital" xlink:label="loc_srtNetCapital" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingencies" xlink:to="loc_srtNetCapital" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansPayable" xlink:label="loc_us-gaapLoansPayable" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingencies" xlink:to="loc_us-gaapLoansPayable" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestPayableCurrentAndNoncurrent" xlink:label="loc_us-gaapInterestPayableCurrentAndNoncurrent" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingencies" xlink:to="loc_us-gaapInterestPayableCurrentAndNoncurrent" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RatioOfIndebtednessToNetCapital1" xlink:label="loc_us-gaapRatioOfIndebtednessToNetCapital1" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingencies" xlink:to="loc_us-gaapRatioOfIndebtednessToNetCapital1" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumNetCapitalRequiredForEntity1" xlink:label="loc_srtMinimumNetCapitalRequiredForEntity1" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingencies" xlink:to="loc_srtMinimumNetCapitalRequiredForEntity1" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/EmployeeBenefitPlansDetailsNarrative" xlink:title="999070 - Disclosure - Employee Benefit Plans (Details Narrative)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:label="loc_us-gaapCompensationAndRetirementDisclosureAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount" xlink:label="loc_us-gaapDefinedContributionPlanEmployerDiscretionaryContributionAmount" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCompensationAndRetirementDisclosureAbstract" xlink:to="loc_us-gaapDefinedContributionPlanEmployerDiscretionaryContributionAmount" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ExclusiveLicenseAgreementMdbMinnesotaOneDetailsNarrative" xlink:title="999071 - Disclosure - Exclusive License Agreement (MDB Minnesota One) (Details Narrative)">
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DisclosureExclusiveLicenseAgreementMdbMinnesotaOneAbstract" xlink:label="loc_MDBHDisclosureExclusiveLicenseAgreementMdbMinnesotaOneAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable" xlink:label="loc_us-gaapScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureExclusiveLicenseAgreementMdbMinnesotaOneAbstract" xlink:to="loc_us-gaapScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems" xlink:label="loc_us-gaapCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable" xlink:to="loc_us-gaapCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TypeOfArrangementAxis" xlink:label="loc_us-gaapTypeOfArrangementAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable" xlink:to="loc_us-gaapTypeOfArrangementAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember" xlink:label="loc_us-gaapArrangementsAndNonarrangementTransactionsMember" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapTypeOfArrangementAxis" xlink:to="loc_us-gaapArrangementsAndNonarrangementTransactionsMember" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_LicenseAgreementMember" xlink:label="loc_MDBHLicenseAgreementMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapArrangementsAndNonarrangementTransactionsMember" xlink:to="loc_MDBHLicenseAgreementMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaapAwardTypeAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable" xlink:to="loc_us-gaapAwardTypeAxis" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAwardTypeAxis" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_PhaseIIclinicalMember" xlink:label="loc_MDBHPhaseIIclinicalMember" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_MDBHPhaseIIclinicalMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_PhaseIIIclinicalMember" xlink:label="loc_MDBHPhaseIIIclinicalMember" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_MDBHPhaseIIIclinicalMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_NewDrugApplicationFirstMember" xlink:label="loc_MDBHNewDrugApplicationFirstMember" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_MDBHNewDrugApplicationFirstMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_NewDrugApplicationMember" xlink:label="loc_MDBHNewDrugApplicationMember" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_MDBHNewDrugApplicationMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="loc_us-gaapStockIssuedDuringPeriodSharesNewIssues" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems" xlink:to="loc_us-gaapStockIssuedDuringPeriodSharesNewIssues" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromLicenseFeesReceived" xlink:label="loc_us-gaapProceedsFromLicenseFeesReceived" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems" xlink:to="loc_us-gaapProceedsFromLicenseFeesReceived" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_PaymentForLicensedProducts" xlink:label="loc_MDBHPaymentForLicensedProducts" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems" xlink:to="loc_MDBHPaymentForLicensedProducts" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfOperatingLeaseCostDetails" xlink:title="999072 - Disclosure - Schedule of Operating Lease Cost (Details)">
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DisclosureLeasesAbstract" xlink:label="loc_MDBHDisclosureLeasesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaapOperatingLeaseRightOfUseAsset" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapOperatingLeaseRightOfUseAsset" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiability" xlink:label="loc_us-gaapOperatingLeaseLiability" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapOperatingLeaseLiability" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1" xlink:label="loc_us-gaapOperatingLeaseWeightedAverageRemainingLeaseTerm1" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapOperatingLeaseWeightedAverageRemainingLeaseTerm1" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent" xlink:label="loc_us-gaapOperatingLeaseWeightedAverageDiscountRatePercent" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapOperatingLeaseWeightedAverageDiscountRatePercent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLeaseIncomeLeasePayments" xlink:label="loc_us-gaapOperatingLeaseLeaseIncomeLeasePayments" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapOperatingLeaseLeaseIncomeLeasePayments" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability" xlink:label="loc_us-gaapRightOfUseAssetObtainedInExchangeForOperatingLeaseLiability" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapRightOfUseAssetObtainedInExchangeForOperatingLeaseLiability" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseCost" xlink:label="loc_us-gaapOperatingLeaseCost" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapOperatingLeaseCost" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShortTermLeaseCost" xlink:label="loc_us-gaapShortTermLeaseCost" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapShortTermLeaseCost" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeasePayments" xlink:label="loc_us-gaapOperatingLeasePayments" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapOperatingLeasePayments" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfFuturePaymentsDueUnderOperatingLeaseDetails" xlink:title="999073 - Disclosure - Schedule of Future payments Due Under Operating Lease (Details)">
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DisclosureLeasesAbstract" xlink:label="loc_MDBHDisclosureLeasesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueYearTwo" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueYearThree" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearThree" xlink:label="loc_MDBHLesseeOperatingLeaseLiabilityPaymentsDueAfterYearThree" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_MDBHLesseeOperatingLeaseLiabilityPaymentsDueAfterYearThree" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDue" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDue" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityUndiscountedExcessAmount" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapLesseeOperatingLeaseLiabilityUndiscountedExcessAmount" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiability" xlink:label="loc_us-gaapOperatingLeaseLiability" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapOperatingLeaseLiability" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/LeasesDetailsNarrative" xlink:title="999074 - Disclosure - Leases (Details Narrative)">
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DisclosureLeasesAbstract" xlink:label="loc_MDBHDisclosureLeasesAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdvanceRent" xlink:label="loc_us-gaapAdvanceRent" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapAdvanceRent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_BaseRent" xlink:label="loc_MDBHBaseRent" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_MDBHBaseRent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_AnnualOperatingCostIncreasePercentage" xlink:label="loc_MDBHAnnualOperatingCostIncreasePercentage" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_MDBHAnnualOperatingCostIncreasePercentage" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseRenewalTerm" xlink:label="loc_us-gaapLesseeOperatingLeaseRenewalTerm" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapLesseeOperatingLeaseRenewalTerm" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseTermOfContract" xlink:label="loc_us-gaapLesseeOperatingLeaseTermOfContract" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapLesseeOperatingLeaseTermOfContract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseOptionToExtend" xlink:label="loc_us-gaapLesseeOperatingLeaseOptionToExtend" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_MDBHDisclosureLeasesAbstract" xlink:to="loc_us-gaapLesseeOperatingLeaseOptionToExtend" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfIncomeTaxesExpensesBenefitDetails" xlink:title="999075 - Disclosure - Schedule of Income Taxes Expenses (benefit) (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaapIncomeTaxDisclosureAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CurrentFederalTaxExpenseBenefit" xlink:label="loc_us-gaapCurrentFederalTaxExpenseBenefit" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapCurrentFederalTaxExpenseBenefit" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="loc_us-gaapCurrentStateAndLocalTaxExpenseBenefit" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapCurrentStateAndLocalTaxExpenseBenefit" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaapDeferredFederalIncomeTaxExpenseBenefit" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapDeferredFederalIncomeTaxExpenseBenefit" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaapDeferredStateAndLocalIncomeTaxExpenseBenefit" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapDeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaapIncomeTaxExpenseBenefit" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapIncomeTaxExpenseBenefit" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/ScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" xlink:title="999076 - Disclosure - Schedule of Deferred Tax Assets and Liabilities (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaapIncomeTaxDisclosureAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaapIncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapIncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_EffectiveIncomeTaxRateReconciliationOfFederalStatutoryIncomeTaxRate" xlink:label="loc_MDBHEffectiveIncomeTaxRateReconciliationOfFederalStatutoryIncomeTaxRate" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_MDBHEffectiveIncomeTaxRateReconciliationOfFederalStatutoryIncomeTaxRate" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_us-gaapIncomeTaxReconciliationStateAndLocalIncomeTaxes" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapIncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_us-gaapEffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapEffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_IncomeTaxReconciliationIncomeLossExcludedFromNontaxableEntities" xlink:label="loc_MDBHIncomeTaxReconciliationIncomeLossExcludedFromNontaxableEntities" />
      <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_MDBHIncomeTaxReconciliationIncomeLossExcludedFromNontaxableEntities" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_EffectiveIncomeTaxRateReconciliationIncomeLossExcludedFromNontaxableEntities" xlink:label="loc_MDBHEffectiveIncomeTaxRateReconciliationIncomeLossExcludedFromNontaxableEntities" />
      <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_MDBHEffectiveIncomeTaxRateReconciliationIncomeLossExcludedFromNontaxableEntities" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_IncomeTaxReconciliationIncomeTaxExpenseBenefitPermanentDifferences" xlink:label="loc_MDBHIncomeTaxReconciliationIncomeTaxExpenseBenefitPermanentDifferences" />
      <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_MDBHIncomeTaxReconciliationIncomeTaxExpenseBenefitPermanentDifferences" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments" xlink:label="loc_us-gaapEffectiveIncomeTaxRateReconciliationOtherAdjustments" />
      <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapEffectiveIncomeTaxRateReconciliationOtherAdjustments" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment" xlink:label="loc_us-gaapIncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment" />
      <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapIncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment" xlink:label="loc_us-gaapEffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment" />
      <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapEffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost" xlink:label="loc_us-gaapIncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost" />
      <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapIncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost" xlink:label="loc_us-gaapEffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost" />
      <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapEffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_IncomeTaxReconciliationEquityInEquityAwardVestingAmount" xlink:label="loc_MDBHIncomeTaxReconciliationEquityInEquityAwardVestingAmount" />
      <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_MDBHIncomeTaxReconciliationEquityInEquityAwardVestingAmount" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseEquityAwardVesting" xlink:label="loc_MDBHEffectiveIncomeTaxRateReconciliationNondeductibleExpenseEquityAwardVesting" />
      <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_MDBHEffectiveIncomeTaxRateReconciliationNondeductibleExpenseEquityAwardVesting" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_IncomeTaxReconciliationModificationOfEquityAwardsAmount" xlink:label="loc_MDBHIncomeTaxReconciliationModificationOfEquityAwardsAmount" />
      <link:presentationArc order="140" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_MDBHIncomeTaxReconciliationModificationOfEquityAwardsAmount" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense" xlink:label="loc_us-gaapEffectiveIncomeTaxRateReconciliationNondeductibleExpense" />
      <link:presentationArc order="150" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapEffectiveIncomeTaxRateReconciliationNondeductibleExpense" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther" xlink:label="loc_us-gaapIncomeTaxReconciliationNondeductibleExpenseOther" />
      <link:presentationArc order="160" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapIncomeTaxReconciliationNondeductibleExpenseOther" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_EffectiveIncomeTaxRateReconciliationReturnToProvisionAdjustments" xlink:label="loc_MDBHEffectiveIncomeTaxRateReconciliationReturnToProvisionAdjustments" />
      <link:presentationArc order="170" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_MDBHEffectiveIncomeTaxRateReconciliationReturnToProvisionAdjustments" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationOtherReconcilingItems" xlink:label="loc_us-gaapIncomeTaxReconciliationOtherReconcilingItems" />
      <link:presentationArc order="180" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapIncomeTaxReconciliationOtherReconcilingItems" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent" xlink:label="loc_us-gaapEffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent" />
      <link:presentationArc order="190" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapEffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_IncomeTaxReconciliationChangeInDeferredTaxAssetValuationAllowance" xlink:label="loc_MDBHIncomeTaxReconciliationChangeInDeferredTaxAssetValuationAllowance" />
      <link:presentationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_MDBHIncomeTaxReconciliationChangeInDeferredTaxAssetValuationAllowance" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetValuationAllowance" xlink:label="loc_MDBHEffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetValuationAllowance" />
      <link:presentationArc order="210" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_MDBHEffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetValuationAllowance" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaapIncomeTaxExpenseBenefit" />
      <link:presentationArc order="220" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapIncomeTaxExpenseBenefit" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:label="loc_us-gaapEffectiveIncomeTaxRateContinuingOperations" />
      <link:presentationArc order="230" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapEffectiveIncomeTaxRateContinuingOperations" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_IncomeTaxReconciliationIncomeTaxExpenseBenefitOfFederalStatutoryIncomeTaxRate" xlink:label="loc_MDBHIncomeTaxReconciliationIncomeTaxExpenseBenefitOfFederalStatutoryIncomeTaxRate" />
      <link:presentationArc order="240" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_MDBHIncomeTaxReconciliationIncomeTaxExpenseBenefitOfFederalStatutoryIncomeTaxRate" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaapEffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" />
      <link:presentationArc order="250" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapEffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsNetAbstract" xlink:label="loc_us-gaapDeferredTaxAssetsNetAbstract" />
      <link:presentationArc order="260" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapDeferredTaxAssetsNetAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DeferredTaxAssetsInStartupExpenditures" xlink:label="loc_MDBHDeferredTaxAssetsInStartupExpenditures" />
      <link:presentationArc order="270" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredTaxAssetsNetAbstract" xlink:to="loc_MDBHDeferredTaxAssetsInStartupExpenditures" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DeferredTaxAssetsInOrganizationalExpenditures" xlink:label="loc_MDBHDeferredTaxAssetsInOrganizationalExpenditures" />
      <link:presentationArc order="280" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredTaxAssetsNetAbstract" xlink:to="loc_MDBHDeferredTaxAssetsInOrganizationalExpenditures" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsInProcessResearchAndDevelopment" xlink:label="loc_us-gaapDeferredTaxAssetsInProcessResearchAndDevelopment" />
      <link:presentationArc order="290" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredTaxAssetsNetAbstract" xlink:to="loc_us-gaapDeferredTaxAssetsInProcessResearchAndDevelopment" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DeferredTaxAssetsStockCompensation" xlink:label="loc_MDBHDeferredTaxAssetsStockCompensation" />
      <link:presentationArc order="300" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredTaxAssetsNetAbstract" xlink:to="loc_MDBHDeferredTaxAssetsStockCompensation" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DeferredTaxAssetsLeaseLiability" xlink:label="loc_MDBHDeferredTaxAssetsLeaseLiability" />
      <link:presentationArc order="310" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredTaxAssetsNetAbstract" xlink:to="loc_MDBHDeferredTaxAssetsLeaseLiability" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment" xlink:label="loc_us-gaapDeferredTaxAssetsPropertyPlantAndEquipment" />
      <link:presentationArc order="320" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredTaxAssetsNetAbstract" xlink:to="loc_us-gaapDeferredTaxAssetsPropertyPlantAndEquipment" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DeferredTaxAssetsBonusExpense" xlink:label="loc_MDBHDeferredTaxAssetsBonusExpense" />
      <link:presentationArc order="330" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredTaxAssetsNetAbstract" xlink:to="loc_MDBHDeferredTaxAssetsBonusExpense" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsCharitableContributionCarryforwards" xlink:label="loc_us-gaapDeferredTaxAssetsCharitableContributionCarryforwards" />
      <link:presentationArc order="340" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredTaxAssetsNetAbstract" xlink:to="loc_us-gaapDeferredTaxAssetsCharitableContributionCarryforwards" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DeferredTaxAssetsImpairmentExpense" xlink:label="loc_MDBHDeferredTaxAssetsImpairmentExpense" />
      <link:presentationArc order="350" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredTaxAssetsNetAbstract" xlink:to="loc_MDBHDeferredTaxAssetsImpairmentExpense" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets" xlink:label="loc_us-gaapDeferredTaxAssetsGoodwillAndIntangibleAssets" />
      <link:presentationArc order="360" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredTaxAssetsNetAbstract" xlink:to="loc_us-gaapDeferredTaxAssetsGoodwillAndIntangibleAssets" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwards" xlink:label="loc_us-gaapDeferredTaxAssetsTaxCreditCarryforwards" />
      <link:presentationArc order="370" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredTaxAssetsNetAbstract" xlink:to="loc_us-gaapDeferredTaxAssetsTaxCreditCarryforwards" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaapDeferredTaxAssetsValuationAllowance" />
      <link:presentationArc order="380" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredTaxAssetsNetAbstract" xlink:to="loc_us-gaapDeferredTaxAssetsValuationAllowance" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsNet" xlink:label="loc_us-gaapDeferredTaxAssetsNet" />
      <link:presentationArc order="390" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredTaxAssetsNetAbstract" xlink:to="loc_us-gaapDeferredTaxAssetsNet" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxLiabilitiesNetAbstract" xlink:label="loc_us-gaapDeferredTaxLiabilitiesNetAbstract" />
      <link:presentationArc order="400" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapDeferredTaxLiabilitiesNetAbstract" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxLiabilitiesOther" xlink:label="loc_us-gaapDeferredTaxLiabilitiesOther" />
      <link:presentationArc order="410" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredTaxLiabilitiesNetAbstract" xlink:to="loc_us-gaapDeferredTaxLiabilitiesOther" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_DeferredTaxLiabilitiesInvestmentSecurities" xlink:label="loc_MDBHDeferredTaxLiabilitiesInvestmentSecurities" />
      <link:presentationArc order="420" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredTaxLiabilitiesNetAbstract" xlink:to="loc_MDBHDeferredTaxLiabilitiesInvestmentSecurities" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxLiabilities" xlink:label="loc_us-gaapDeferredTaxLiabilities" />
      <link:presentationArc order="430" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredTaxLiabilitiesNetAbstract" xlink:to="loc_us-gaapDeferredTaxLiabilities" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:label="loc_us-gaapDeferredTaxAssetsLiabilitiesNet" />
      <link:presentationArc order="440" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredTaxLiabilitiesNetAbstract" xlink:to="loc_us-gaapDeferredTaxAssetsLiabilitiesNet" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/IncomeTaxesDetailsNarrative" xlink:title="999077 - Disclosure - Income Taxes (Details Narrative)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaapIncomeTaxDisclosureAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLossCarryforwardsTable" xlink:label="loc_us-gaapOperatingLossCarryforwardsTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract" xlink:to="loc_us-gaapOperatingLossCarryforwardsTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLossCarryforwardsLineItems" xlink:label="loc_us-gaapOperatingLossCarryforwardsLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingLossCarryforwardsTable" xlink:to="loc_us-gaapOperatingLossCarryforwardsLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityNameAxis" xlink:label="loc_us-gaapIncomeTaxAuthorityNameAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingLossCarryforwardsTable" xlink:to="loc_us-gaapIncomeTaxAuthorityNameAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityNameDomain" xlink:label="loc_us-gaapIncomeTaxAuthorityNameDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxAuthorityNameAxis" xlink:to="loc_us-gaapIncomeTaxAuthorityNameDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_USFederalTaxMember" xlink:label="loc_MDBHUSFederalTaxMember" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxAuthorityNameDomain" xlink:to="loc_MDBHUSFederalTaxMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="mdbh-20251231.xsd#MDBH_FloridaIncomeTaxMember" xlink:label="loc_MDBHFloridaIncomeTaxMember" />
      <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxAuthorityNameDomain" xlink:to="loc_MDBHFloridaIncomeTaxMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxesPaid" xlink:label="loc_us-gaapIncomeTaxesPaid" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingLossCarryforwardsLineItems" xlink:to="loc_us-gaapIncomeTaxesPaid" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLossCarryforwards" xlink:label="loc_us-gaapOperatingLossCarryforwards" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingLossCarryforwardsLineItems" xlink:to="loc_us-gaapOperatingLossCarryforwards" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaapDeferredTaxAssetsValuationAllowance" />
      <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingLossCarryforwardsLineItems" xlink:to="loc_us-gaapDeferredTaxAssetsValuationAllowance" xlink:type="arc" />
    </link:presentationLink>
    <link:presentationLink xlink:type="extended" xlink:role="http://mdb.com/role/SubsequentEventsDetailsNarrative" xlink:title="999078 - Disclosure - Subsequent Events (Details Narrative)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="loc_us-gaapSubsequentEventsAbstract" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTable" xlink:label="loc_us-gaapSubsequentEventTable" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsequentEventsAbstract" xlink:to="loc_us-gaapSubsequentEventTable" order="100" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventLineItems" xlink:label="loc_us-gaapSubsequentEventLineItems" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsequentEventTable" xlink:to="loc_us-gaapSubsequentEventLineItems" order="200" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaapAwardTypeAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsequentEventTable" xlink:to="loc_us-gaapAwardTypeAxis" order="10" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAwardTypeAxis" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaapRestrictedStockUnitsRSUMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaapRestrictedStockUnitsRSUMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaapSubsequentEventTypeAxis" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsequentEventTable" xlink:to="loc_us-gaapSubsequentEventTypeAxis" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaapSubsequentEventTypeDomain" />
      <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsequentEventTypeAxis" xlink:to="loc_us-gaapSubsequentEventTypeDomain" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaapSubsequentEventMember" />
      <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsequentEventTypeDomain" xlink:to="loc_us-gaapSubsequentEventMember" xlink:type="arc" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" />
      <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsequentEventLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    </link:presentationLink>
</link:linkbase>
