<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2021 Workiva-->
<!--r:8bc2353f-51d1-49a0-814e-f7e2f15ed468,g:da3b4644-114f-482b-a21c-5d9cf63567f4-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.cdw.com/role/CoverPage" xlink:type="simple" xlink:href="cdw-20210630.xsd#CoverPage"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/CoverPage" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_23397414-5414-4a31-9bef-0bb8c2d4d38c" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_DocumentType_23397414-5414-4a31-9bef-0bb8c2d4d38c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport_49a49092-7c1d-4d66-98a2-5f3a40560405" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentQuarterlyReport"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_DocumentQuarterlyReport_49a49092-7c1d-4d66-98a2-5f3a40560405" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_13f5514a-24b4-4ef5-89d0-9921a6078cbd" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_DocumentPeriodEndDate_13f5514a-24b4-4ef5-89d0-9921a6078cbd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_69f50fce-2da7-404e-866d-038d22832b9a" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentTransitionReport"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_DocumentTransitionReport_69f50fce-2da7-404e-866d-038d22832b9a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_fd31c077-f124-4142-8d78-8cd4e4bd2d64" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_EntityFileNumber_fd31c077-f124-4142-8d78-8cd4e4bd2d64" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_355486ad-2d45-4331-9435-65f16268ced1" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_EntityRegistrantName_355486ad-2d45-4331-9435-65f16268ced1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_3becc686-82a3-4791-897d-0227343a5e23" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_EntityIncorporationStateCountryCode_3becc686-82a3-4791-897d-0227343a5e23" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_e2fa823d-d4ad-4eed-99b9-4dd79fb56f27" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_EntityTaxIdentificationNumber_e2fa823d-d4ad-4eed-99b9-4dd79fb56f27" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_28371be9-cece-47db-9d2a-b6a329582ccc" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_EntityAddressAddressLine1_28371be9-cece-47db-9d2a-b6a329582ccc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_61c40122-b19d-45b5-89a0-53b2de17b33b" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_EntityAddressCityOrTown_61c40122-b19d-45b5-89a0-53b2de17b33b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_5bc9f1b1-3e46-4a10-988c-76a72f3d6564" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_EntityAddressStateOrProvince_5bc9f1b1-3e46-4a10-988c-76a72f3d6564" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_079a4d7e-039c-4940-b0dc-07fd68ae82c0" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_EntityAddressPostalZipCode_079a4d7e-039c-4940-b0dc-07fd68ae82c0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_f14f6af1-1261-49ec-a877-3f9f7e9750cc" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_CityAreaCode_f14f6af1-1261-49ec-a877-3f9f7e9750cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_8f8dde03-1302-4163-b745-cfb9ce893407" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_LocalPhoneNumber_8f8dde03-1302-4163-b745-cfb9ce893407" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_b977fe99-2380-44bf-8e09-9d2a5a3aa061" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_Security12bTitle_b977fe99-2380-44bf-8e09-9d2a5a3aa061" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_6e3a32d4-dd4c-416f-97cb-eb1bc519e128" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_TradingSymbol_6e3a32d4-dd4c-416f-97cb-eb1bc519e128" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_b231fd74-d1ef-4eae-aa97-ba86cd2d0d2a" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_SecurityExchangeName_b231fd74-d1ef-4eae-aa97-ba86cd2d0d2a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_502b19ec-cbad-4fb2-9cfe-ff89e978560d" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityCurrentReportingStatus"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_EntityCurrentReportingStatus_502b19ec-cbad-4fb2-9cfe-ff89e978560d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_91e9576e-ef62-40dc-8e1f-2e5ce1784903" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_EntityInteractiveDataCurrent_91e9576e-ef62-40dc-8e1f-2e5ce1784903" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_4c92d909-1fa7-477c-b77a-25ce99470f96" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityFilerCategory"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_EntityFilerCategory_4c92d909-1fa7-477c-b77a-25ce99470f96" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_1d942051-796e-47a8-97bd-8be9a9246f0a" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntitySmallBusiness"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_EntitySmallBusiness_1d942051-796e-47a8-97bd-8be9a9246f0a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_c84a80a9-230a-4496-a592-25c5d42eab9b" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_EntityEmergingGrowthCompany_c84a80a9-230a-4496-a592-25c5d42eab9b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_3d2540d5-a59d-4c05-a7cb-4195707b5486" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityShellCompany"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_EntityShellCompany_3d2540d5-a59d-4c05-a7cb-4195707b5486" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_7677a182-9328-4928-93d1-8bed9f9fea3a" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_7677a182-9328-4928-93d1-8bed9f9fea3a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_d1e825fe-ea36-4ec3-9fa8-5b79bf502a80" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="25" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_EntityCentralIndexKey_d1e825fe-ea36-4ec3-9fa8-5b79bf502a80" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_30184508-5bbb-47f2-8177-3865665a78d7" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:presentationArc order="26" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_DocumentFiscalPeriodFocus_30184508-5bbb-47f2-8177-3865665a78d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_9e478bb5-393c-439d-a4c5-6e3d22d7f6dc" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:presentationArc order="27" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_CurrentFiscalYearEndDate_9e478bb5-393c-439d-a4c5-6e3d22d7f6dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_384dac51-18b8-40de-9dde-6d428a75c70f" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentFiscalYearFocus"/>
    <link:presentationArc order="28" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_DocumentFiscalYearFocus_384dac51-18b8-40de-9dde-6d428a75c70f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_e609e0bc-6d79-4ca4-9d84-ba753ccb28c6" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="29" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_c90efa14-8699-4363-8cb1-728162e1adac" xlink:to="loc_dei_AmendmentFlag_e609e0bc-6d79-4ca4-9d84-ba753ccb28c6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/ConsolidatedBalanceSheets" xlink:type="simple" xlink:href="cdw-20210630.xsd#ConsolidatedBalanceSheets"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_e237795c-2ad0-465e-97fb-7266d93160ea" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_903ba2d9-84ec-4b12-ac60-815d661f8568" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e237795c-2ad0-465e-97fb-7266d93160ea" xlink:to="loc_us-gaap_AssetsAbstract_903ba2d9-84ec-4b12-ac60-815d661f8568" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrentAbstract_dc1e042d-3b00-4bdb-a4fa-766c74859888" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrentAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_903ba2d9-84ec-4b12-ac60-815d661f8568" xlink:to="loc_us-gaap_AssetsCurrentAbstract_dc1e042d-3b00-4bdb-a4fa-766c74859888" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_7062b190-5e4d-44ae-a4e5-ff6ae687ba38" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_dc1e042d-3b00-4bdb-a4fa-766c74859888" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_7062b190-5e4d-44ae-a4e5-ff6ae687ba38" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_efe7f1f4-a37a-49ee-b106-363cde46fcdb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_dc1e042d-3b00-4bdb-a4fa-766c74859888" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_efe7f1f4-a37a-49ee-b106-363cde46fcdb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_a0c72c42-caaf-423c-adfa-db7516d5d4c7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryNet"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_dc1e042d-3b00-4bdb-a4fa-766c74859888" xlink:to="loc_us-gaap_InventoryNet_a0c72c42-caaf-423c-adfa-db7516d5d4c7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherReceivablesNetCurrent_fec14c38-296b-412b-a3b9-127c304096a7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherReceivablesNetCurrent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_dc1e042d-3b00-4bdb-a4fa-766c74859888" xlink:to="loc_us-gaap_OtherReceivablesNetCurrent_fec14c38-296b-412b-a3b9-127c304096a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_0bb3734f-d965-4d03-bcd0-7f7800d8a904" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_dc1e042d-3b00-4bdb-a4fa-766c74859888" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_0bb3734f-d965-4d03-bcd0-7f7800d8a904" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_f1eba9e3-6832-4d9f-b9cf-8092ee0a30a1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrent"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_dc1e042d-3b00-4bdb-a4fa-766c74859888" xlink:to="loc_us-gaap_AssetsCurrent_f1eba9e3-6832-4d9f-b9cf-8092ee0a30a1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_b743d403-47c7-4c5c-bf92-8f8421b7497c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_903ba2d9-84ec-4b12-ac60-815d661f8568" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_b743d403-47c7-4c5c-bf92-8f8421b7497c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_dfa20975-165e-478c-9937-5a528ed6f581" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_903ba2d9-84ec-4b12-ac60-815d661f8568" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_dfa20975-165e-478c-9937-5a528ed6f581" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_5bedf69b-d915-4863-9056-70aa79e29d4a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Goodwill"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_903ba2d9-84ec-4b12-ac60-815d661f8568" xlink:to="loc_us-gaap_Goodwill_5bedf69b-d915-4863-9056-70aa79e29d4a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_173b3481-9026-411f-ab1a-e22b9ba59614" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_903ba2d9-84ec-4b12-ac60-815d661f8568" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_173b3481-9026-411f-ab1a-e22b9ba59614" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_f7d30e5b-18dd-4af4-92db-1ea0d970eb1c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_903ba2d9-84ec-4b12-ac60-815d661f8568" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_f7d30e5b-18dd-4af4-92db-1ea0d970eb1c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_dfd53100-dfd7-48fa-8e70-f2280743c65c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Assets"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_903ba2d9-84ec-4b12-ac60-815d661f8568" xlink:to="loc_us-gaap_Assets_dfd53100-dfd7-48fa-8e70-f2280743c65c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_80204870-701f-4d26-a7a7-e7df26e4d68d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e237795c-2ad0-465e-97fb-7266d93160ea" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_80204870-701f-4d26-a7a7-e7df26e4d68d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_da60dc9b-1069-4ec9-a826-2137698e20a2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_80204870-701f-4d26-a7a7-e7df26e4d68d" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_da60dc9b-1069-4ec9-a826-2137698e20a2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableTradeCurrent_fc164a47-560b-4afb-9e44-d23a7b1c747d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsPayableTradeCurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_da60dc9b-1069-4ec9-a826-2137698e20a2" xlink:to="loc_us-gaap_AccountsPayableTradeCurrent_fc164a47-560b-4afb-9e44-d23a7b1c747d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_AccountsPayableInventoryFinancing_8f295a9b-0294-4b2d-963e-0776b5e07fc7" xlink:href="cdw-20210630.xsd#cdw_AccountsPayableInventoryFinancing"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_da60dc9b-1069-4ec9-a826-2137698e20a2" xlink:to="loc_cdw_AccountsPayableInventoryFinancing_8f295a9b-0294-4b2d-963e-0776b5e07fc7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_e2cb0a86-9134-4a62-80d8-484fccea9484" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_da60dc9b-1069-4ec9-a826-2137698e20a2" xlink:to="loc_us-gaap_LongTermDebtCurrent_e2cb0a86-9134-4a62-80d8-484fccea9484" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_cd1e9b03-6da4-4e12-9fbe-f58cbbb211d5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_da60dc9b-1069-4ec9-a826-2137698e20a2" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_cd1e9b03-6da4-4e12-9fbe-f58cbbb211d5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrentAbstract_d6bab072-ba39-4182-8e16-b7d0043c0f78" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedLiabilitiesCurrentAbstract"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_da60dc9b-1069-4ec9-a826-2137698e20a2" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrentAbstract_d6bab072-ba39-4182-8e16-b7d0043c0f78" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_cd2d8087-4fdb-4003-ad64-e3501d82e1e5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrentAbstract_d6bab072-ba39-4182-8e16-b7d0043c0f78" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_cd2d8087-4fdb-4003-ad64-e3501d82e1e5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedAdvertisingCurrent_0adf6add-c037-41f9-a092-afbf3402e159" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedAdvertisingCurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrentAbstract_d6bab072-ba39-4182-8e16-b7d0043c0f78" xlink:to="loc_us-gaap_AccruedAdvertisingCurrent_0adf6add-c037-41f9-a092-afbf3402e159" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_da17d3bf-4135-4c4f-b7db-61940afb75e3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedIncomeTaxesCurrent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrentAbstract_d6bab072-ba39-4182-8e16-b7d0043c0f78" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_da17d3bf-4135-4c4f-b7db-61940afb75e3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_5d75ae9e-a5e6-4a56-9162-f8e9198fb1f7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrentAbstract_d6bab072-ba39-4182-8e16-b7d0043c0f78" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_5d75ae9e-a5e6-4a56-9162-f8e9198fb1f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_de12c0fc-c44e-4726-b8f2-f6cd3f4a8881" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrentAbstract_d6bab072-ba39-4182-8e16-b7d0043c0f78" xlink:to="loc_us-gaap_LiabilitiesCurrent_de12c0fc-c44e-4726-b8f2-f6cd3f4a8881" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrentAbstract_5c244f43-135d-43ff-8746-2570b33d65a2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesNoncurrentAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_80204870-701f-4d26-a7a7-e7df26e4d68d" xlink:to="loc_us-gaap_LiabilitiesNoncurrentAbstract_5c244f43-135d-43ff-8746-2570b33d65a2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_07326f0e-a96f-4505-acdf-a8f38c5cbef1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_5c244f43-135d-43ff-8746-2570b33d65a2" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_07326f0e-a96f-4505-acdf-a8f38c5cbef1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_a2c7346e-3ed3-4bd5-abb6-7b10769b7d7c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_5c244f43-135d-43ff-8746-2570b33d65a2" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_a2c7346e-3ed3-4bd5-abb6-7b10769b7d7c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_2bde5b45-8147-4631-9cd4-d5930e9d6661" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_5c244f43-135d-43ff-8746-2570b33d65a2" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_2bde5b45-8147-4631-9cd4-d5930e9d6661" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_88c450fc-4999-470c-a018-ce50f03d2b46" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_5c244f43-135d-43ff-8746-2570b33d65a2" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_88c450fc-4999-470c-a018-ce50f03d2b46" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_ca1161df-812a-43e7-85ee-97ef26fe7624" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesNoncurrent"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_5c244f43-135d-43ff-8746-2570b33d65a2" xlink:to="loc_us-gaap_LiabilitiesNoncurrent_ca1161df-812a-43e7-85ee-97ef26fe7624" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityAbstract_94951543-d573-4694-8fe3-9c476179992d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityAbstract"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_80204870-701f-4d26-a7a7-e7df26e4d68d" xlink:to="loc_us-gaap_StockholdersEquityAbstract_94951543-d573-4694-8fe3-9c476179992d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_6f229c4b-73ec-4c93-98cf-b4737be54bed" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_94951543-d573-4694-8fe3-9c476179992d" xlink:to="loc_us-gaap_PreferredStockValue_6f229c4b-73ec-4c93-98cf-b4737be54bed" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_c35d31cf-9ce1-4ea9-99c5-55d47a7b7e07" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockValue"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_94951543-d573-4694-8fe3-9c476179992d" xlink:to="loc_us-gaap_CommonStockValue_c35d31cf-9ce1-4ea9-99c5-55d47a7b7e07" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_904e78dc-6427-44fc-be48-12b8d78b5494" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_94951543-d573-4694-8fe3-9c476179992d" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_904e78dc-6427-44fc-be48-12b8d78b5494" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_966cb93a-937b-45e6-aaaa-98b4e130ee06" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_94951543-d573-4694-8fe3-9c476179992d" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_966cb93a-937b-45e6-aaaa-98b4e130ee06" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_cd8c1c80-df95-4545-99d0-8542ead45363" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_94951543-d573-4694-8fe3-9c476179992d" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_cd8c1c80-df95-4545-99d0-8542ead45363" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_86602d88-0c9a-4944-aa4f-dd625ada20ae" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_94951543-d573-4694-8fe3-9c476179992d" xlink:to="loc_us-gaap_StockholdersEquity_86602d88-0c9a-4944-aa4f-dd625ada20ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_0e4faea6-b60c-44a0-a498-ab1d136e49ad" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_80204870-701f-4d26-a7a7-e7df26e4d68d" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_0e4faea6-b60c-44a0-a498-ab1d136e49ad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/ConsolidatedBalanceSheetsParentheticals" xlink:type="simple" xlink:href="cdw-20210630.xsd#ConsolidatedBalanceSheetsParentheticals"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/ConsolidatedBalanceSheetsParentheticals" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_e8e24844-1f47-441c-b22c-8aa072348678" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_3e47ce38-5dd5-4231-bab1-6e83b8cc73e1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e8e24844-1f47-441c-b22c-8aa072348678" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_3e47ce38-5dd5-4231-bab1-6e83b8cc73e1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_d4a0d075-571a-435a-8266-aa0b03fb88b3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e8e24844-1f47-441c-b22c-8aa072348678" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_d4a0d075-571a-435a-8266-aa0b03fb88b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_7193213c-58a8-4a93-9168-2a4de10df10b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e8e24844-1f47-441c-b22c-8aa072348678" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_7193213c-58a8-4a93-9168-2a4de10df10b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesIssued_4f7371b7-12dd-4b47-a326-ed9e9a79cf53" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockSharesIssued"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e8e24844-1f47-441c-b22c-8aa072348678" xlink:to="loc_us-gaap_PreferredStockSharesIssued_4f7371b7-12dd-4b47-a326-ed9e9a79cf53" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_93b2a2ed-37bb-421c-9827-eff737d411f0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e8e24844-1f47-441c-b22c-8aa072348678" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_93b2a2ed-37bb-421c-9827-eff737d411f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_1debb765-d2a4-4c8d-b2f1-71189619bd93" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e8e24844-1f47-441c-b22c-8aa072348678" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_1debb765-d2a4-4c8d-b2f1-71189619bd93" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_d19ba9df-dcc4-462d-8d13-3d41864a503d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e8e24844-1f47-441c-b22c-8aa072348678" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_d19ba9df-dcc4-462d-8d13-3d41864a503d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_6528d329-d56e-4494-80b0-3ce6b444e69f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e8e24844-1f47-441c-b22c-8aa072348678" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_6528d329-d56e-4494-80b0-3ce6b444e69f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/ConsolidatedStatementsOfOperationsUnaudited" xlink:type="simple" xlink:href="cdw-20210630.xsd#ConsolidatedStatementsOfOperationsUnaudited"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/ConsolidatedStatementsOfOperationsUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementAbstract_3e1c78ac-fdd1-4235-9b36-351c6153144b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_b1b5f324-df2a-4006-9b31-62331562a204" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_3e1c78ac-fdd1-4235-9b36-351c6153144b" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_b1b5f324-df2a-4006-9b31-62331562a204" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_fd894205-b140-4c37-b518-d6440d9321d2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_3e1c78ac-fdd1-4235-9b36-351c6153144b" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_fd894205-b140-4c37-b518-d6440d9321d2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_c6b5a570-6b89-4c6b-b249-b8b1434df3cf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GrossProfit"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_3e1c78ac-fdd1-4235-9b36-351c6153144b" xlink:to="loc_us-gaap_GrossProfit_c6b5a570-6b89-4c6b-b249-b8b1434df3cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_cc1297dd-19ae-41d0-b610-4870ef03a710" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_3e1c78ac-fdd1-4235-9b36-351c6153144b" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_cc1297dd-19ae-41d0-b610-4870ef03a710" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_8b39832d-cfcf-4b89-a826-9149f06662ff" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_3e1c78ac-fdd1-4235-9b36-351c6153144b" xlink:to="loc_us-gaap_OperatingIncomeLoss_8b39832d-cfcf-4b89-a826-9149f06662ff" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_dc50631e-cd6a-4001-bd55-925fa900a9fb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_3e1c78ac-fdd1-4235-9b36-351c6153144b" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_dc50631e-cd6a-4001-bd55-925fa900a9fb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_26e2e1e1-7d6d-4f83-b9b7-eed7c17fd7b9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_3e1c78ac-fdd1-4235-9b36-351c6153144b" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_26e2e1e1-7d6d-4f83-b9b7-eed7c17fd7b9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_a1566941-49a9-4b40-be21-4f15f57a0edd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_3e1c78ac-fdd1-4235-9b36-351c6153144b" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_a1566941-49a9-4b40-be21-4f15f57a0edd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_b729b6b3-de11-4df9-9ffe-0abf0a1c896f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_3e1c78ac-fdd1-4235-9b36-351c6153144b" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_b729b6b3-de11-4df9-9ffe-0abf0a1c896f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_4769f4de-1042-4ca6-80d5-b81e73db2adf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_3e1c78ac-fdd1-4235-9b36-351c6153144b" xlink:to="loc_us-gaap_NetIncomeLoss_4769f4de-1042-4ca6-80d5-b81e73db2adf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_9e9055b0-64ed-4442-8102-5c3fbf0cf3f1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedAbstract"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_3e1c78ac-fdd1-4235-9b36-351c6153144b" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_9e9055b0-64ed-4442-8102-5c3fbf0cf3f1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_a5b5b9b6-eaf7-47b4-8bf4-7c5cb3646ece" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_9e9055b0-64ed-4442-8102-5c3fbf0cf3f1" xlink:to="loc_us-gaap_EarningsPerShareBasic_a5b5b9b6-eaf7-47b4-8bf4-7c5cb3646ece" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_e568e8dd-2f60-4590-9bb7-2c8d6e6ffdfc" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_9e9055b0-64ed-4442-8102-5c3fbf0cf3f1" xlink:to="loc_us-gaap_EarningsPerShareDiluted_e568e8dd-2f60-4590-9bb7-2c8d6e6ffdfc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_ccd1f774-0a8c-405d-9576-8a2938c5c309" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_3e1c78ac-fdd1-4235-9b36-351c6153144b" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_ccd1f774-0a8c-405d-9576-8a2938c5c309" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_e0e6e489-82f7-481d-bd30-7f453b153c87" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_ccd1f774-0a8c-405d-9576-8a2938c5c309" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_e0e6e489-82f7-481d-bd30-7f453b153c87" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_ecd3da4c-bd63-4ad2-83f4-9a8e5ef38663" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_ccd1f774-0a8c-405d-9576-8a2938c5c309" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_ecd3da4c-bd63-4ad2-83f4-9a8e5ef38663" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/ConsolidatedStatementsOfComprehensiveIncomeUnaudited" xlink:type="simple" xlink:href="cdw-20210630.xsd#ConsolidatedStatementsOfComprehensiveIncomeUnaudited"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/ConsolidatedStatementsOfComprehensiveIncomeUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_2046a929-59bf-40a1-89dc-56cd85bd30ce" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_0ffcde6c-304c-40a4-92e1-49d46a05c223" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_2046a929-59bf-40a1-89dc-56cd85bd30ce" xlink:to="loc_us-gaap_NetIncomeLoss_0ffcde6c-304c-40a4-92e1-49d46a05c223" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_bd84ac77-537d-4051-b9be-360223981309" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_2046a929-59bf-40a1-89dc-56cd85bd30ce" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_bd84ac77-537d-4051-b9be-360223981309" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax_7950584f-aa66-480e-a1d5-eb7c43b888af" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_bd84ac77-537d-4051-b9be-360223981309" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax_7950584f-aa66-480e-a1d5-eb7c43b888af" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_30760cdc-cd65-4688-982b-0779c48f6383" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_bd84ac77-537d-4051-b9be-360223981309" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_30760cdc-cd65-4688-982b-0779c48f6383" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_12c37f5f-4727-45a3-ac70-bcda82915e69" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_bd84ac77-537d-4051-b9be-360223981309" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_12c37f5f-4727-45a3-ac70-bcda82915e69" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_06fbc422-8762-4402-9f3f-a100d9451758" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_bd84ac77-537d-4051-b9be-360223981309" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_06fbc422-8762-4402-9f3f-a100d9451758" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_e6d63016-3558-4af8-9505-98c48d78fc2e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_2046a929-59bf-40a1-89dc-56cd85bd30ce" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_e6d63016-3558-4af8-9505-98c48d78fc2e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/ConsolidatedStatementofStockholdersEquityUnaudited" xlink:type="simple" xlink:href="cdw-20210630.xsd#ConsolidatedStatementofStockholdersEquityUnaudited"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/ConsolidatedStatementofStockholdersEquityUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_6b71a389-43db-4981-8ab9-761c649a7f69" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_111d63e8-6e91-4f87-b7cf-17042fa0bc5b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_6b71a389-43db-4981-8ab9-761c649a7f69" xlink:to="loc_us-gaap_StatementTable_111d63e8-6e91-4f87-b7cf-17042fa0bc5b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_e962f53b-fd79-4a9c-a75a-4f118408b9f4" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_111d63e8-6e91-4f87-b7cf-17042fa0bc5b" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_e962f53b-fd79-4a9c-a75a-4f118408b9f4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_8dcf18d0-ec48-4675-88ef-5ce7e31a0c42" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_e962f53b-fd79-4a9c-a75a-4f118408b9f4" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_8dcf18d0-ec48-4675-88ef-5ce7e31a0c42" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_bbef1136-b9ca-402d-81ca-b732dc4dc470" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_8dcf18d0-ec48-4675-88ef-5ce7e31a0c42" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_bbef1136-b9ca-402d-81ca-b732dc4dc470" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_e2cf858c-d4f1-4f82-8365-9eb075acc9f7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_111d63e8-6e91-4f87-b7cf-17042fa0bc5b" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_e2cf858c-d4f1-4f82-8365-9eb075acc9f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_438835c2-2b25-402c-ac3f-2c31669cca5f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_e2cf858c-d4f1-4f82-8365-9eb075acc9f7" xlink:to="loc_us-gaap_EquityComponentDomain_438835c2-2b25-402c-ac3f-2c31669cca5f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_55507389-085e-413f-b70b-2dce3a1a0ca0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_438835c2-2b25-402c-ac3f-2c31669cca5f" xlink:to="loc_us-gaap_CommonStockMember_55507389-085e-413f-b70b-2dce3a1a0ca0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_56666022-9257-4b28-9352-7bfd0c10ddd5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_438835c2-2b25-402c-ac3f-2c31669cca5f" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_56666022-9257-4b28-9352-7bfd0c10ddd5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_70ee5e64-b434-4f1e-849f-7697c88ba1e9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RetainedEarningsMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_438835c2-2b25-402c-ac3f-2c31669cca5f" xlink:to="loc_us-gaap_RetainedEarningsMember_70ee5e64-b434-4f1e-849f-7697c88ba1e9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_d82692d4-91b2-4921-96ad-b284d8707ce0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_438835c2-2b25-402c-ac3f-2c31669cca5f" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_d82692d4-91b2-4921-96ad-b284d8707ce0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_362a0ab3-b6f7-4a7f-a143-59826aa28084" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_111d63e8-6e91-4f87-b7cf-17042fa0bc5b" xlink:to="loc_us-gaap_StatementLineItems_362a0ab3-b6f7-4a7f-a143-59826aa28084" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_362a0ab3-b6f7-4a7f-a143-59826aa28084" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesIssued_ceb68538-6f6a-439e-ab99-a4663de393c6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharesIssued"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:to="loc_us-gaap_SharesIssued_ceb68538-6f6a-439e-ab99-a4663de393c6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_994a2b7a-56d9-4d92-bcd2-3c99a3bd59ae" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:to="loc_us-gaap_StockholdersEquity_994a2b7a-56d9-4d92-bcd2-3c99a3bd59ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_18f51c74-8d0f-407f-b2be-f4aba2ebe86c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:to="loc_us-gaap_NetIncomeLoss_18f51c74-8d0f-407f-b2be-f4aba2ebe86c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_013280fc-9e85-4806-91b8-d20f846f4ffa" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_013280fc-9e85-4806-91b8-d20f846f4ffa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_689c0ad0-d76a-48a1-b87a-c54e3d1b1ba8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_689c0ad0-d76a-48a1-b87a-c54e3d1b1ba8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_25cc89dd-afe2-4699-9af8-3ceafe155643" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_25cc89dd-afe2-4699-9af8-3ceafe155643" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_32a3470c-7d7d-4189-8b6d-7f79a69e597c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_32a3470c-7d7d-4189-8b6d-7f79a69e597c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_397a43de-36b0-4730-85e1-3d5b9894f4bb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_397a43de-36b0-4730-85e1-3d5b9894f4bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_a10da85a-f620-4eb0-b86a-a4825a678063" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodShares"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_a10da85a-f620-4eb0-b86a-a4825a678063" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_06bcedad-cad1-48ae-8ecc-b037ffdf7010" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodValue"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_06bcedad-cad1-48ae-8ecc-b037ffdf7010" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsCommonStock_847cbf32-0984-41f2-9f63-18315ca7dfc9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DividendsCommonStock"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:to="loc_us-gaap_DividendsCommonStock_847cbf32-0984-41f2-9f63-18315ca7dfc9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_9deff193-06d8-4d8f-b284-509dcee6b0fb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:to="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_9deff193-06d8-4d8f-b284-509dcee6b0fb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax_bb6a20f0-5544-40f5-9089-c406abf34840" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax_bb6a20f0-5544-40f5-9089-c406abf34840" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_871955c6-5e64-4e69-ab4c-088b1e58cf34" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_871955c6-5e64-4e69-ab4c-088b1e58cf34" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_913a4f5e-188d-405a-b3cb-6bb5c97240d9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_913a4f5e-188d-405a-b3cb-6bb5c97240d9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesIssued_4d80d097-3ab8-4d60-b888-17bea84384e1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharesIssued"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:to="loc_us-gaap_SharesIssued_4d80d097-3ab8-4d60-b888-17bea84384e1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_b9a42dd7-9e32-4e4e-83b4-aa26ce72c4a8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_03dc2ba2-94b6-488a-a333-cf841d5e2760" xlink:to="loc_us-gaap_StockholdersEquity_b9a42dd7-9e32-4e4e-83b4-aa26ce72c4a8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingStandardsUpdateExtensibleList_9a2dc55b-288c-4d6c-aa71-a03ed880ab4a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingStandardsUpdateExtensibleList"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_362a0ab3-b6f7-4a7f-a143-59826aa28084" xlink:to="loc_us-gaap_AccountingStandardsUpdateExtensibleList_9a2dc55b-288c-4d6c-aa71-a03ed880ab4a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/ConsolidatedStatementsofShareholdersEquityUnauditedParenthetical" xlink:type="simple" xlink:href="cdw-20210630.xsd#ConsolidatedStatementsofShareholdersEquityUnauditedParenthetical"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/ConsolidatedStatementsofShareholdersEquityUnauditedParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_1f4ad917-3521-4078-905a-606cb64a925c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockDividendsPerShareCashPaid_bac6804e-9f2e-4e0d-b7fb-985009b95276" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockDividendsPerShareCashPaid"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_1f4ad917-3521-4078-905a-606cb64a925c" xlink:to="loc_us-gaap_CommonStockDividendsPerShareCashPaid_bac6804e-9f2e-4e0d-b7fb-985009b95276" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingStandardsUpdateExtensibleList_609e9757-62f5-4eb2-86b6-02f3caac8e3f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingStandardsUpdateExtensibleList"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_1f4ad917-3521-4078-905a-606cb64a925c" xlink:to="loc_us-gaap_AccountingStandardsUpdateExtensibleList_609e9757-62f5-4eb2-86b6-02f3caac8e3f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/ConsolidatedStatementsofCashFlowsUnaudited" xlink:type="simple" xlink:href="cdw-20210630.xsd#ConsolidatedStatementsofCashFlowsUnaudited"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/ConsolidatedStatementsofCashFlowsUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_d6c01ccf-9e55-41df-852d-47159bed863a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_aeebd0a5-9c8e-4178-9e97-452882328018" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_d6c01ccf-9e55-41df-852d-47159bed863a" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_aeebd0a5-9c8e-4178-9e97-452882328018" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_f80aad1f-7148-4e14-a46d-955ab2849ce2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_aeebd0a5-9c8e-4178-9e97-452882328018" xlink:to="loc_us-gaap_NetIncomeLoss_f80aad1f-7148-4e14-a46d-955ab2849ce2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_d069c2d0-26c3-4cf3-bc4c-710add1d8d99" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_aeebd0a5-9c8e-4178-9e97-452882328018" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_d069c2d0-26c3-4cf3-bc4c-710add1d8d99" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAmortizationAndAccretionNet_a459b81a-206f-479e-a37e-7396f9ee1166" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DepreciationAmortizationAndAccretionNet"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_d069c2d0-26c3-4cf3-bc4c-710add1d8d99" xlink:to="loc_us-gaap_DepreciationAmortizationAndAccretionNet_a459b81a-206f-479e-a37e-7396f9ee1166" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_5bc1a8bd-1ab4-4ac2-9d81-3f888a87a565" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_d069c2d0-26c3-4cf3-bc4c-710add1d8d99" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_5bc1a8bd-1ab4-4ac2-9d81-3f888a87a565" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredIncomeTaxes_f3394e1e-7be1-4aee-947e-cc9df812fee6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredIncomeTaxes"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_d069c2d0-26c3-4cf3-bc4c-710add1d8d99" xlink:to="loc_us-gaap_IncreaseDecreaseInDeferredIncomeTaxes_f3394e1e-7be1-4aee-947e-cc9df812fee6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_66451021-36f1-4162-ace1-f84f08db7e3b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_d069c2d0-26c3-4cf3-bc4c-710add1d8d99" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_66451021-36f1-4162-ace1-f84f08db7e3b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_d589484e-1343-4ff0-a2d1-449f0a53e0fc" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherOperatingActivitiesCashFlowStatement"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_d069c2d0-26c3-4cf3-bc4c-710add1d8d99" xlink:to="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_d589484e-1343-4ff0-a2d1-449f0a53e0fc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_b1acf027-8acb-42b1-b153-7b5356c309c8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingAssetsAbstract"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_d069c2d0-26c3-4cf3-bc4c-710add1d8d99" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_b1acf027-8acb-42b1-b153-7b5356c309c8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_1b5fed8e-972b-4491-b719-afd125cecc62" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_b1acf027-8acb-42b1-b153-7b5356c309c8" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_1b5fed8e-972b-4491-b719-afd125cecc62" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_e3e507df-60ba-4b9b-be3a-271c39a71e4b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_b1acf027-8acb-42b1-b153-7b5356c309c8" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_e3e507df-60ba-4b9b-be3a-271c39a71e4b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_6f3ec87c-a341-491e-a6d2-9d39b5b1454c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_b1acf027-8acb-42b1-b153-7b5356c309c8" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_6f3ec87c-a341-491e-a6d2-9d39b5b1454c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade_9a5f7a69-7726-445d-aaa4-d91794d68ad8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableTrade"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_b1acf027-8acb-42b1-b153-7b5356c309c8" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade_9a5f7a69-7726-445d-aaa4-d91794d68ad8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_4760705c-24d6-4724-853d-f5cede421b76" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_b1acf027-8acb-42b1-b153-7b5356c309c8" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_4760705c-24d6-4724-853d-f5cede421b76" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f473e41e-3fd3-4e8e-a6e9-fafbb8de22f3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_d069c2d0-26c3-4cf3-bc4c-710add1d8d99" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f473e41e-3fd3-4e8e-a6e9-fafbb8de22f3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_ddc55f40-9159-4e41-97ac-3aa1076125a0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_d6c01ccf-9e55-41df-852d-47159bed863a" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_ddc55f40-9159-4e41-97ac-3aa1076125a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_f8f71fdd-9748-415e-906e-0735a06c43bc" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_ddc55f40-9159-4e41-97ac-3aa1076125a0" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_f8f71fdd-9748-415e-906e-0735a06c43bc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_d3a7d35e-db6b-4520-af23-e15e68035e45" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_ddc55f40-9159-4e41-97ac-3aa1076125a0" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_d3a7d35e-db6b-4520-af23-e15e68035e45" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfEquityMethodInvestments_ef3b2084-a82c-4d90-863e-eb0f0546b109" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromSaleOfEquityMethodInvestments"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_ddc55f40-9159-4e41-97ac-3aa1076125a0" xlink:to="loc_us-gaap_ProceedsFromSaleOfEquityMethodInvestments_ef3b2084-a82c-4d90-863e-eb0f0546b109" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_ec540f3c-8d21-4601-bca4-0f1c443756fc" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_ddc55f40-9159-4e41-97ac-3aa1076125a0" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_ec540f3c-8d21-4601-bca4-0f1c443756fc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_545a8d87-d5a1-4962-a05d-b84b323cc366" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_d6c01ccf-9e55-41df-852d-47159bed863a" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_545a8d87-d5a1-4962-a05d-b84b323cc366" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_e647d768-d39e-4227-b3c4-d9fd030b5733" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromLinesOfCredit"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_545a8d87-d5a1-4962-a05d-b84b323cc366" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_e647d768-d39e-4227-b3c4-d9fd030b5733" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLinesOfCredit_178b65cc-be4c-45eb-ba18-1d8af091ba65" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfLinesOfCredit"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_545a8d87-d5a1-4962-a05d-b84b323cc366" xlink:to="loc_us-gaap_RepaymentsOfLinesOfCredit_178b65cc-be4c-45eb-ba18-1d8af091ba65" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_155dccea-c123-4ac6-a4f9-5b9a76acca8c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_545a8d87-d5a1-4962-a05d-b84b323cc366" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_155dccea-c123-4ac6-a4f9-5b9a76acca8c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtExtinguishmentCosts_123dc338-494e-426d-bf74-e862ec49b156" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsOfDebtExtinguishmentCosts"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_545a8d87-d5a1-4962-a05d-b84b323cc366" xlink:to="loc_us-gaap_PaymentsOfDebtExtinguishmentCosts_123dc338-494e-426d-bf74-e862ec49b156" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_NetChangeInAccountsPayableInventoryFinancing_904c8195-c97b-47cd-b6f6-5601fec08d1a" xlink:href="cdw-20210630.xsd#cdw_NetChangeInAccountsPayableInventoryFinancing"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_545a8d87-d5a1-4962-a05d-b84b323cc366" xlink:to="loc_cdw_NetChangeInAccountsPayableInventoryFinancing_904c8195-c97b-47cd-b6f6-5601fec08d1a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_eef8eb44-99bf-4188-ab6b-68454ab1ade0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_545a8d87-d5a1-4962-a05d-b84b323cc366" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_eef8eb44-99bf-4188-ab6b-68454ab1ade0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_5da42076-f9ff-4db2-a4a3-70be37a196a2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_545a8d87-d5a1-4962-a05d-b84b323cc366" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_5da42076-f9ff-4db2-a4a3-70be37a196a2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_8607384c-6bf0-4503-a991-725dabe216ca" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_545a8d87-d5a1-4962-a05d-b84b323cc366" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_8607384c-6bf0-4503-a991-725dabe216ca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_0516c797-a7ae-4610-adf2-3b55b7b0d595" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_545a8d87-d5a1-4962-a05d-b84b323cc366" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_0516c797-a7ae-4610-adf2-3b55b7b0d595" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_82e581f5-8ead-45ee-9dc6-97c688767960" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_545a8d87-d5a1-4962-a05d-b84b323cc366" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_82e581f5-8ead-45ee-9dc6-97c688767960" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_52c94bf2-b658-4464-ad71-58f5af62159b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_545a8d87-d5a1-4962-a05d-b84b323cc366" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_52c94bf2-b658-4464-ad71-58f5af62159b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ac503c1-d6a7-4bb9-a6bc-fa52e0a05e87" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_545a8d87-d5a1-4962-a05d-b84b323cc366" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7ac503c1-d6a7-4bb9-a6bc-fa52e0a05e87" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5ffb11f8-e7f2-49d1-a6ad-5de7cff09648" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_d6c01ccf-9e55-41df-852d-47159bed863a" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5ffb11f8-e7f2-49d1-a6ad-5de7cff09648" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_3a2e6ff0-3cb5-414c-9dcd-4e56707a6860" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_d6c01ccf-9e55-41df-852d-47159bed863a" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_3a2e6ff0-3cb5-414c-9dcd-4e56707a6860" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_1cef0b26-98e3-4119-90a0-1b11c8450d5e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_d6c01ccf-9e55-41df-852d-47159bed863a" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_1cef0b26-98e3-4119-90a0-1b11c8450d5e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5276ecc1-05c1-4cc0-91fb-ec2380758d9e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_d6c01ccf-9e55-41df-852d-47159bed863a" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5276ecc1-05c1-4cc0-91fb-ec2380758d9e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_b157e360-cef9-40d6-b0a7-9f80ef82a42e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_d6c01ccf-9e55-41df-852d-47159bed863a" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_b157e360-cef9-40d6-b0a7-9f80ef82a42e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPaidNet_b4eecf1d-1cf0-4cea-8f7c-6125068eeae1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestPaidNet"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_b157e360-cef9-40d6-b0a7-9f80ef82a42e" xlink:to="loc_us-gaap_InterestPaidNet_b4eecf1d-1cf0-4cea-8f7c-6125068eeae1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesPaidNet_efa38a5b-ba1b-4d11-9a15-66cab0092d0e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxesPaidNet"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_b157e360-cef9-40d6-b0a7-9f80ef82a42e" xlink:to="loc_us-gaap_IncomeTaxesPaidNet_efa38a5b-ba1b-4d11-9a15-66cab0092d0e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPolicies" xlink:type="simple" xlink:href="cdw-20210630.xsd#DescriptionofBusinessandSummaryofSignificantAccountingPolicies"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPolicies" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_563b327e-76df-4c38-86f1-9dc9b91d4991" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_87676ece-068b-43d5-b80f-46a3cb8cb1db" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_563b327e-76df-4c38-86f1-9dc9b91d4991" xlink:to="loc_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_87676ece-068b-43d5-b80f-46a3cb8cb1db" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesPolicies" xlink:type="simple" xlink:href="cdw-20210630.xsd#DescriptionofBusinessandSummaryofSignificantAccountingPoliciesPolicies"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesPolicies" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_7424a793-9b39-4000-8cfa-0c49785e7a5e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_DescriptionofBusinessPolicyTextBlock_08418a8b-1d50-4a4f-908e-3bd6a1bedf3d" xlink:href="cdw-20210630.xsd#cdw_DescriptionofBusinessPolicyTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_7424a793-9b39-4000-8cfa-0c49785e7a5e" xlink:to="loc_cdw_DescriptionofBusinessPolicyTextBlock_08418a8b-1d50-4a4f-908e-3bd6a1bedf3d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_9c9bf819-afe3-4f35-bf7b-d1742df8cdff" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_7424a793-9b39-4000-8cfa-0c49785e7a5e" xlink:to="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_9c9bf819-afe3-4f35-bf7b-d1742df8cdff" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PriorPeriodReclassificationAdjustmentDescription_b6dd337c-e17b-451f-b189-2de289d416a4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PriorPeriodReclassificationAdjustmentDescription"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_7424a793-9b39-4000-8cfa-0c49785e7a5e" xlink:to="loc_us-gaap_PriorPeriodReclassificationAdjustmentDescription_b6dd337c-e17b-451f-b189-2de289d416a4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConsolidationPolicyTextBlock_077672cf-522e-411f-983e-fd1118636308" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConsolidationPolicyTextBlock"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_7424a793-9b39-4000-8cfa-0c49785e7a5e" xlink:to="loc_us-gaap_ConsolidationPolicyTextBlock_077672cf-522e-411f-983e-fd1118636308" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UseOfEstimates_9d33a79e-67d3-49aa-a927-1f2814d606fb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_UseOfEstimates"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_7424a793-9b39-4000-8cfa-0c49785e7a5e" xlink:to="loc_us-gaap_UseOfEstimates_9d33a79e-67d3-49aa-a927-1f2814d606fb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_1f3b00f8-0366-41bc-b9b0-df4215d25a39" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_7424a793-9b39-4000-8cfa-0c49785e7a5e" xlink:to="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_1f3b00f8-0366-41bc-b9b0-df4215d25a39" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesDetails" xlink:type="simple" xlink:href="cdw-20210630.xsd#DescriptionofBusinessandSummaryofSignificantAccountingPoliciesDetails"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/DescriptionofBusinessandSummaryofSignificantAccountingPoliciesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_d7042a05-8bd7-4041-b2eb-04100102e6c1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_NumberofOwnedSubsidiaries_adb031f9-359c-4a8b-824f-490b6eb2bfba" xlink:href="cdw-20210630.xsd#cdw_NumberofOwnedSubsidiaries"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_d7042a05-8bd7-4041-b2eb-04100102e6c1" xlink:to="loc_cdw_NumberofOwnedSubsidiaries_adb031f9-359c-4a8b-824f-490b6eb2bfba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/RecentAccountingPronouncements" xlink:type="simple" xlink:href="cdw-20210630.xsd#RecentAccountingPronouncements"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/RecentAccountingPronouncements" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract_d03ecffe-6614-438d-b94a-db2fd771df15" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_e06e4ffe-a695-477f-9ef4-76289e97b1a8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract_d03ecffe-6614-438d-b94a-db2fd771df15" xlink:to="loc_us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_e06e4ffe-a695-477f-9ef4-76289e97b1a8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/RecentAccountingPronouncementsDetails" xlink:type="simple" xlink:href="cdw-20210630.xsd#RecentAccountingPronouncementsDetails"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/RecentAccountingPronouncementsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract_927b05a3-04ef-4fc3-aa21-44bc14feb1fa" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_77b624a9-4f09-43b1-9184-c6ebf70b9c1a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract_927b05a3-04ef-4fc3-aa21-44bc14feb1fa" xlink:to="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_77b624a9-4f09-43b1-9184-c6ebf70b9c1a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_0fc5f86a-8b54-43d1-949c-5b2b44d28bba" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_77b624a9-4f09-43b1-9184-c6ebf70b9c1a" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_0fc5f86a-8b54-43d1-949c-5b2b44d28bba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_9ed0fe68-a895-48bd-a51a-bd35724a8333" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_0fc5f86a-8b54-43d1-949c-5b2b44d28bba" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_9ed0fe68-a895-48bd-a51a-bd35724a8333" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_38538392-af31-43b1-9dc3-756ad3d261ca" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_9ed0fe68-a895-48bd-a51a-bd35724a8333" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_38538392-af31-43b1-9dc3-756ad3d261ca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_ae11b199-0598-4340-b949-8dd024783973" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_77b624a9-4f09-43b1-9184-c6ebf70b9c1a" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_ae11b199-0598-4340-b949-8dd024783973" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_899d4e1b-1c2e-4e88-a3f8-b7361fc3bc4f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_ae11b199-0598-4340-b949-8dd024783973" xlink:to="loc_us-gaap_EquityComponentDomain_899d4e1b-1c2e-4e88-a3f8-b7361fc3bc4f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_7386e28b-5c71-41b8-8103-a13e6190427c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RetainedEarningsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_899d4e1b-1c2e-4e88-a3f8-b7361fc3bc4f" xlink:to="loc_us-gaap_RetainedEarningsMember_7386e28b-5c71-41b8-8103-a13e6190427c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_892f2f40-5aa6-4456-8211-62d31c34080e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_77b624a9-4f09-43b1-9184-c6ebf70b9c1a" xlink:to="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_892f2f40-5aa6-4456-8211-62d31c34080e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_70f53c0c-f4c7-45f5-adf5-bbf23c3ba12c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_892f2f40-5aa6-4456-8211-62d31c34080e" xlink:to="loc_us-gaap_StockholdersEquity_70f53c0c-f4c7-45f5-adf5-bbf23c3ba12c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/Acquisition" xlink:type="simple" xlink:href="cdw-20210630.xsd#Acquisition"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/Acquisition" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationAndAssetAcquisitionAbstract_5f668f4a-7fd8-4c2f-959a-14ca81ccbe3c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationAndAssetAcquisitionAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationDisclosureTextBlock_2b6e558a-a156-469d-9a8d-792e93f24e17" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationAndAssetAcquisitionAbstract_5f668f4a-7fd8-4c2f-959a-14ca81ccbe3c" xlink:to="loc_us-gaap_BusinessCombinationDisclosureTextBlock_2b6e558a-a156-469d-9a8d-792e93f24e17" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/AcquisitionNarrativeDetails" xlink:type="simple" xlink:href="cdw-20210630.xsd#AcquisitionNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/AcquisitionNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationAndAssetAcquisitionAbstract_43156f05-d718-4b35-8ee2-c5bdfb014d3a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationAndAssetAcquisitionAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1601f21e-cb48-4495-96ff-b43a34199979" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationAndAssetAcquisitionAbstract_43156f05-d718-4b35-8ee2-c5bdfb014d3a" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1601f21e-cb48-4495-96ff-b43a34199979" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_2ad4269d-139e-4400-8a3e-9ddea75f1027" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1601f21e-cb48-4495-96ff-b43a34199979" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_2ad4269d-139e-4400-8a3e-9ddea75f1027" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_30be058f-e0fb-414b-9914-ce0a1ec5bc2b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_2ad4269d-139e-4400-8a3e-9ddea75f1027" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_30be058f-e0fb-414b-9914-ce0a1ec5bc2b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_AmplifiedITLLCMember_9fb0dce8-b229-436f-9bd5-59309be3ea46" xlink:href="cdw-20210630.xsd#cdw_AmplifiedITLLCMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_30be058f-e0fb-414b-9914-ce0a1ec5bc2b" xlink:to="loc_cdw_AmplifiedITLLCMember_9fb0dce8-b229-436f-9bd5-59309be3ea46" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_5f90bfca-d9c3-4df8-b221-fe5f8f83d92f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1601f21e-cb48-4495-96ff-b43a34199979" xlink:to="loc_us-gaap_BusinessAcquisitionLineItems_5f90bfca-d9c3-4df8-b221-fe5f8f83d92f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_8e8409df-956b-4549-9305-4317b0036127" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_5f90bfca-d9c3-4df8-b221-fe5f8f83d92f" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_8e8409df-956b-4549-9305-4317b0036127" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/Goodwill" xlink:type="simple" xlink:href="cdw-20210630.xsd#Goodwill"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/Goodwill" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_fe136146-ff72-465e-8381-bd832e32ffe4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_e9637641-813a-41a6-8be1-1707017c1d6f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_fe136146-ff72-465e-8381-bd832e32ffe4" xlink:to="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_e9637641-813a-41a6-8be1-1707017c1d6f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/GoodwillTables" xlink:type="simple" xlink:href="cdw-20210630.xsd#GoodwillTables"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/GoodwillTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_34f215ff-9a4d-4d55-b1cc-34645d1a09dd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfGoodwillTextBlock_c618a7b6-1a29-4c20-b800-aebc6d4b81e3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfGoodwillTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_34f215ff-9a4d-4d55-b1cc-34645d1a09dd" xlink:to="loc_us-gaap_ScheduleOfGoodwillTextBlock_c618a7b6-1a29-4c20-b800-aebc6d4b81e3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/GoodwillScheduleofGoodwillbySegmentDetails" xlink:type="simple" xlink:href="cdw-20210630.xsd#GoodwillScheduleofGoodwillbySegmentDetails"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/GoodwillScheduleofGoodwillbySegmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_3dbfed39-9eda-4779-8e94-2d5f3eb030e1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable_c262ee3e-d76a-4d2c-b7ec-a70f5fab0517" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfGoodwillTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_3dbfed39-9eda-4779-8e94-2d5f3eb030e1" xlink:to="loc_us-gaap_ScheduleOfGoodwillTable_c262ee3e-d76a-4d2c-b7ec-a70f5fab0517" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_9283fecc-8434-4dc1-b6f3-1d0806068c35" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_c262ee3e-d76a-4d2c-b7ec-a70f5fab0517" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_9283fecc-8434-4dc1-b6f3-1d0806068c35" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8ee8915a-0349-49da-bc64-c11e2161a9d6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_9283fecc-8434-4dc1-b6f3-1d0806068c35" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8ee8915a-0349-49da-bc64-c11e2161a9d6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_AmplifiedITLLCMember_4addcf88-e9a8-4549-b828-d6a85808789b" xlink:href="cdw-20210630.xsd#cdw_AmplifiedITLLCMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8ee8915a-0349-49da-bc64-c11e2161a9d6" xlink:to="loc_cdw_AmplifiedITLLCMember_4addcf88-e9a8-4549-b828-d6a85808789b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_OtherAcquisitionMember_3d782a88-e973-41ce-8be2-226cb84d7f51" xlink:href="cdw-20210630.xsd#cdw_OtherAcquisitionMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8ee8915a-0349-49da-bc64-c11e2161a9d6" xlink:to="loc_cdw_OtherAcquisitionMember_3d782a88-e973-41ce-8be2-226cb84d7f51" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_2a8968d6-dcea-43ff-92b1-7abf1457dabd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_c262ee3e-d76a-4d2c-b7ec-a70f5fab0517" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_2a8968d6-dcea-43ff-92b1-7abf1457dabd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_d95a5179-bbf3-40b4-8435-7e3d9925e688" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_2a8968d6-dcea-43ff-92b1-7abf1457dabd" xlink:to="loc_us-gaap_SegmentDomain_d95a5179-bbf3-40b4-8435-7e3d9925e688" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateMember_6934d00c-aedd-4ef7-85e2-b28a38193daa" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CorporateMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_d95a5179-bbf3-40b4-8435-7e3d9925e688" xlink:to="loc_us-gaap_CorporateMember_6934d00c-aedd-4ef7-85e2-b28a38193daa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SmallBusinessMember_6598979a-5129-4d21-a70a-a37b025e94a4" xlink:href="cdw-20210630.xsd#cdw_SmallBusinessMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_d95a5179-bbf3-40b4-8435-7e3d9925e688" xlink:to="loc_cdw_SmallBusinessMember_6598979a-5129-4d21-a70a-a37b025e94a4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_PublicMember_c0d3230f-2d1e-40c5-97ca-de58c7b18def" xlink:href="cdw-20210630.xsd#cdw_PublicMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_d95a5179-bbf3-40b4-8435-7e3d9925e688" xlink:to="loc_cdw_PublicMember_c0d3230f-2d1e-40c5-97ca-de58c7b18def" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllOtherSegmentsMember_0e2aa080-2780-4649-9619-b82136a41bf8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AllOtherSegmentsMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_d95a5179-bbf3-40b4-8435-7e3d9925e688" xlink:to="loc_us-gaap_AllOtherSegmentsMember_0e2aa080-2780-4649-9619-b82136a41bf8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillLineItems_2374d94d-22d6-4c17-96e8-8f355323880f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GoodwillLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_c262ee3e-d76a-4d2c-b7ec-a70f5fab0517" xlink:to="loc_us-gaap_GoodwillLineItems_2374d94d-22d6-4c17-96e8-8f355323880f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillRollForward_21558e9c-1817-45b1-833e-a73154afe3a6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GoodwillRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillLineItems_2374d94d-22d6-4c17-96e8-8f355323880f" xlink:to="loc_us-gaap_GoodwillRollForward_21558e9c-1817-45b1-833e-a73154afe3a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_b06d0829-6a32-47e4-bfef-bc7d69344b99" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Goodwill"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_21558e9c-1817-45b1-833e-a73154afe3a6" xlink:to="loc_us-gaap_Goodwill_b06d0829-6a32-47e4-bfef-bc7d69344b99" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAcquiredDuringPeriod_a5c4c688-13bb-46ef-81b5-e143de1e792c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GoodwillAcquiredDuringPeriod"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_21558e9c-1817-45b1-833e-a73154afe3a6" xlink:to="loc_us-gaap_GoodwillAcquiredDuringPeriod_a5c4c688-13bb-46ef-81b5-e143de1e792c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_c4db5664-bac2-4295-956f-a3ef0b923a52" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GoodwillForeignCurrencyTranslationGainLoss"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_21558e9c-1817-45b1-833e-a73154afe3a6" xlink:to="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_c4db5664-bac2-4295-956f-a3ef0b923a52" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_a82f8e5a-e332-41c9-a57d-1c24cb3ce1ac" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Goodwill"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_21558e9c-1817-45b1-833e-a73154afe3a6" xlink:to="loc_us-gaap_Goodwill_a82f8e5a-e332-41c9-a57d-1c24cb3ce1ac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_685c20d8-4f7a-47ed-bfc6-62cfd01fe459" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GoodwillImpairedAccumulatedImpairmentLoss"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillLineItems_2374d94d-22d6-4c17-96e8-8f355323880f" xlink:to="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_685c20d8-4f7a-47ed-bfc6-62cfd01fe459" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/InventoryFinancingAgreements" xlink:type="simple" xlink:href="cdw-20210630.xsd#InventoryFinancingAgreements"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/InventoryFinancingAgreements" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_cdw_InventoryFinancingAgreementsAbstract_58b6e275-b260-41be-9c4c-9607b73cc668" xlink:href="cdw-20210630.xsd#cdw_InventoryFinancingAgreementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_InventoryFinancingAgreementsTextBlock_cb2342f5-4704-4484-8ad3-bd33ded661ab" xlink:href="cdw-20210630.xsd#cdw_InventoryFinancingAgreementsTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_InventoryFinancingAgreementsAbstract_58b6e275-b260-41be-9c4c-9607b73cc668" xlink:to="loc_cdw_InventoryFinancingAgreementsTextBlock_cb2342f5-4704-4484-8ad3-bd33ded661ab" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/InventoryFinancingAgreementsTables" xlink:type="simple" xlink:href="cdw-20210630.xsd#InventoryFinancingAgreementsTables"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/InventoryFinancingAgreementsTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_cdw_InventoryFinancingAgreementsAbstract_939f0873-76cf-4dd4-90f5-fdcfc3047288" xlink:href="cdw-20210630.xsd#cdw_InventoryFinancingAgreementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_InventoryFinancingAgreementsTableTextBlock_713926b5-2bca-4311-980b-b5e55022f85c" xlink:href="cdw-20210630.xsd#cdw_InventoryFinancingAgreementsTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_InventoryFinancingAgreementsAbstract_939f0873-76cf-4dd4-90f5-fdcfc3047288" xlink:to="loc_cdw_InventoryFinancingAgreementsTableTextBlock_713926b5-2bca-4311-980b-b5e55022f85c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/InventoryFinancingAgreementsDetails" xlink:type="simple" xlink:href="cdw-20210630.xsd#InventoryFinancingAgreementsDetails"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/InventoryFinancingAgreementsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_cdw_InventoryFinancingAgreementsAbstract_15e6bf09-73bd-47ec-8499-bad864695615" xlink:href="cdw-20210630.xsd#cdw_InventoryFinancingAgreementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_InventoryFinancingAgreementsTable_35b9898d-482b-445b-9fa7-11614eda2068" xlink:href="cdw-20210630.xsd#cdw_InventoryFinancingAgreementsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_InventoryFinancingAgreementsAbstract_15e6bf09-73bd-47ec-8499-bad864695615" xlink:to="loc_cdw_InventoryFinancingAgreementsTable_35b9898d-482b-445b-9fa7-11614eda2068" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_InventoryFinancingAgreementsAxis_ea069bee-61f8-44bd-99be-c6c4f212e60e" xlink:href="cdw-20210630.xsd#cdw_InventoryFinancingAgreementsAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_InventoryFinancingAgreementsTable_35b9898d-482b-445b-9fa7-11614eda2068" xlink:to="loc_cdw_InventoryFinancingAgreementsAxis_ea069bee-61f8-44bd-99be-c6c4f212e60e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_InventoryFinancingAgreementsDomain_2e42fffe-f141-40f4-9bfb-f6f6dd64815f" xlink:href="cdw-20210630.xsd#cdw_InventoryFinancingAgreementsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_InventoryFinancingAgreementsAxis_ea069bee-61f8-44bd-99be-c6c4f212e60e" xlink:to="loc_cdw_InventoryFinancingAgreementsDomain_2e42fffe-f141-40f4-9bfb-f6f6dd64815f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_AccountsPayableInventoryFinancingMember_a08f7707-7054-4f0a-a7e6-850c47b351f1" xlink:href="cdw-20210630.xsd#cdw_AccountsPayableInventoryFinancingMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_InventoryFinancingAgreementsDomain_2e42fffe-f141-40f4-9bfb-f6f6dd64815f" xlink:to="loc_cdw_AccountsPayableInventoryFinancingMember_a08f7707-7054-4f0a-a7e6-850c47b351f1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_InventoryFinancingAgreementsLineItems_fa7b6167-95d9-45a2-9d0d-14a0568e6fb0" xlink:href="cdw-20210630.xsd#cdw_InventoryFinancingAgreementsLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_InventoryFinancingAgreementsTable_35b9898d-482b-445b-9fa7-11614eda2068" xlink:to="loc_cdw_InventoryFinancingAgreementsLineItems_fa7b6167-95d9-45a2-9d0d-14a0568e6fb0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_RevolvingLoanFinancingAgreement_c24fe4f3-5235-4abb-82bc-14eb3a434c76" xlink:href="cdw-20210630.xsd#cdw_RevolvingLoanFinancingAgreement"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_InventoryFinancingAgreementsLineItems_fa7b6167-95d9-45a2-9d0d-14a0568e6fb0" xlink:to="loc_cdw_RevolvingLoanFinancingAgreement_c24fe4f3-5235-4abb-82bc-14eb3a434c76" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_OtherInventoryFinancingAgreements_cc84d446-b99d-4a55-bd1c-ea58c06b4e9f" xlink:href="cdw-20210630.xsd#cdw_OtherInventoryFinancingAgreements"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_InventoryFinancingAgreementsLineItems_fa7b6167-95d9-45a2-9d0d-14a0568e6fb0" xlink:to="loc_cdw_OtherInventoryFinancingAgreements_cc84d446-b99d-4a55-bd1c-ea58c06b4e9f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_AccountsPayableInventoryFinancing_d4edb83d-8e4f-49a2-b97c-202399ef2ee4" xlink:href="cdw-20210630.xsd#cdw_AccountsPayableInventoryFinancing"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_InventoryFinancingAgreementsLineItems_fa7b6167-95d9-45a2-9d0d-14a0568e6fb0" xlink:to="loc_cdw_AccountsPayableInventoryFinancing_d4edb83d-8e4f-49a2-b97c-202399ef2ee4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/ContractLiabilitiesandPerformanceObligations" xlink:type="simple" xlink:href="cdw-20210630.xsd#ContractLiabilitiesandPerformanceObligations"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/ContractLiabilitiesandPerformanceObligations" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_6748a8ad-5955-4b48-8683-2e0361105c71" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerTextBlock_8ab77422-b50e-4268-a4ac-5a80bb042453" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_6748a8ad-5955-4b48-8683-2e0361105c71" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerTextBlock_8ab77422-b50e-4268-a4ac-5a80bb042453" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/ContractLiabilitiesandPerformanceObligationsTables" xlink:type="simple" xlink:href="cdw-20210630.xsd#ContractLiabilitiesandPerformanceObligationsTables"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/ContractLiabilitiesandPerformanceObligationsTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_62251259-169d-44ff-8d74-2b2750ad0585" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock_69aa4a0b-52cb-4136-b615-0113ef7d7304" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_62251259-169d-44ff-8d74-2b2750ad0585" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock_69aa4a0b-52cb-4136-b615-0113ef7d7304" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/ContractLiabilitiesandPerformanceObligationsNarrativeDetails" xlink:type="simple" xlink:href="cdw-20210630.xsd#ContractLiabilitiesandPerformanceObligationsNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/ContractLiabilitiesandPerformanceObligationsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_26d04f20-d30e-46b2-ae85-f0a4488a97ed" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiability_9b7616fe-2c46-43ca-9c64-b016b685f8ab" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiability"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_26d04f20-d30e-46b2-ae85-f0a4488a97ed" xlink:to="loc_us-gaap_ContractWithCustomerLiability_9b7616fe-2c46-43ca-9c64-b016b685f8ab" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_2ea2cd60-43ee-48fe-9d1a-0568112a5f7d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_26d04f20-d30e-46b2-ae85-f0a4488a97ed" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_2ea2cd60-43ee-48fe-9d1a-0568112a5f7d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/ContractLiabilitiesandPerformanceObligationsScheduleofRemainingPerformanceObligationsDetails" xlink:type="simple" xlink:href="cdw-20210630.xsd#ContractLiabilitiesandPerformanceObligationsScheduleofRemainingPerformanceObligationsDetails"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/ContractLiabilitiesandPerformanceObligationsScheduleofRemainingPerformanceObligationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_757fed78-e6b2-4413-8fb8-5e13c90d8036" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_ba9671e2-0d26-4593-a1a2-e3fdd3dd8b3d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_757fed78-e6b2-4413-8fb8-5e13c90d8036" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_ba9671e2-0d26-4593-a1a2-e3fdd3dd8b3d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_ea720a3f-32c0-4828-91b0-d39dd791f8b9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_757fed78-e6b2-4413-8fb8-5e13c90d8036" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_ea720a3f-32c0-4828-91b0-d39dd791f8b9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_ca884dec-dcd7-4f4a-b4c1-8346164d4824" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_ea720a3f-32c0-4828-91b0-d39dd791f8b9" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_ca884dec-dcd7-4f4a-b4c1-8346164d4824" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_2da374fb-8fae-4944-8059-67adf21bad49" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_ea720a3f-32c0-4828-91b0-d39dd791f8b9" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_2da374fb-8fae-4944-8059-67adf21bad49" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_03e48ce6-6209-4da7-9825-66f69c453df2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_2da374fb-8fae-4944-8059-67adf21bad49" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_03e48ce6-6209-4da7-9825-66f69c453df2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/ContractLiabilitiesandPerformanceObligationsScheduleofRemainingPerformanceObligationsDetails_1" xlink:type="simple" xlink:href="cdw-20210630.xsd#ContractLiabilitiesandPerformanceObligationsScheduleofRemainingPerformanceObligationsDetails_1"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/ContractLiabilitiesandPerformanceObligationsScheduleofRemainingPerformanceObligationsDetails_1" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.cdw.com/role/LongTermDebt" xlink:type="simple" xlink:href="cdw-20210630.xsd#LongTermDebt"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/LongTermDebt" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_55e21ff5-19f7-4ecb-8e74-64513c35c339" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtTextBlock_31cc6fee-e8d1-42a4-840b-e4b98a9af86c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_55e21ff5-19f7-4ecb-8e74-64513c35c339" xlink:to="loc_us-gaap_LongTermDebtTextBlock_31cc6fee-e8d1-42a4-840b-e4b98a9af86c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/LongTermDebtTables" xlink:type="simple" xlink:href="cdw-20210630.xsd#LongTermDebtTables"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/LongTermDebtTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_91e8cd35-8ead-4d12-85ac-1cb619df69af" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDebtTableTextBlock_334631b4-71db-46af-97f9-c35a9375c099" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfDebtTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_91e8cd35-8ead-4d12-85ac-1cb619df69af" xlink:to="loc_us-gaap_ScheduleOfDebtTableTextBlock_334631b4-71db-46af-97f9-c35a9375c099" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfCarryingValuesAndEstimatedFairValuesOfDebtInstrumentsTableTextBlock_fbc2565c-b7e9-4de9-b59a-d1e164dd2cc6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfCarryingValuesAndEstimatedFairValuesOfDebtInstrumentsTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_91e8cd35-8ead-4d12-85ac-1cb619df69af" xlink:to="loc_us-gaap_ScheduleOfCarryingValuesAndEstimatedFairValuesOfDebtInstrumentsTableTextBlock_fbc2565c-b7e9-4de9-b59a-d1e164dd2cc6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/LongTermDebtDebtBalancesandInterestRatesDetails" xlink:type="simple" xlink:href="cdw-20210630.xsd#LongTermDebtDebtBalancesandInterestRatesDetails"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/LongTermDebtDebtBalancesandInterestRatesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_884c1282-6f26-4f96-976f-6595c89d0fb1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_cea8536b-cb86-4d80-a976-9dc0c0c2d4f8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_884c1282-6f26-4f96-976f-6595c89d0fb1" xlink:to="loc_us-gaap_DebtInstrumentTable_cea8536b-cb86-4d80-a976-9dc0c0c2d4f8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_ea746b4e-f1db-47ee-aa92-25dcbcdd267c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_cea8536b-cb86-4d80-a976-9dc0c0c2d4f8" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_ea746b4e-f1db-47ee-aa92-25dcbcdd267c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_3452e5ec-d499-48f5-a981-ab8e24899399" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_ea746b4e-f1db-47ee-aa92-25dcbcdd267c" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_3452e5ec-d499-48f5-a981-ab8e24899399" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SeniorSecuredAssetBasedRevolvingCreditFacilityMember_871cd791-bf5a-480a-b88a-5cf6aadeb144" xlink:href="cdw-20210630.xsd#cdw_SeniorSecuredAssetBasedRevolvingCreditFacilityMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_3452e5ec-d499-48f5-a981-ab8e24899399" xlink:to="loc_cdw_SeniorSecuredAssetBasedRevolvingCreditFacilityMember_871cd791-bf5a-480a-b88a-5cf6aadeb144" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_TermLoanMember_945687d5-212a-415c-8e3f-92a26a0bcc10" xlink:href="cdw-20210630.xsd#cdw_TermLoanMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_3452e5ec-d499-48f5-a981-ab8e24899399" xlink:to="loc_cdw_TermLoanMember_945687d5-212a-415c-8e3f-92a26a0bcc10" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_CDWUKTermLoanMember_97f334b9-a876-4eaa-b7c4-7e4f8f8b6f4f" xlink:href="cdw-20210630.xsd#cdw_CDWUKTermLoanMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_TermLoanMember_945687d5-212a-415c-8e3f-92a26a0bcc10" xlink:to="loc_cdw_CDWUKTermLoanMember_97f334b9-a876-4eaa-b7c4-7e4f8f8b6f4f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SeniorSecuredTermLoanFacilityMember_9b57d568-aa32-450a-a99e-d6d3381d4cd3" xlink:href="cdw-20210630.xsd#cdw_SeniorSecuredTermLoanFacilityMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_TermLoanMember_945687d5-212a-415c-8e3f-92a26a0bcc10" xlink:to="loc_cdw_SeniorSecuredTermLoanFacilityMember_9b57d568-aa32-450a-a99e-d6d3381d4cd3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_UnsecuredSeniorNotesMember_9089e189-ea9f-4591-808a-c4a1ada78054" xlink:href="cdw-20210630.xsd#cdw_UnsecuredSeniorNotesMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_3452e5ec-d499-48f5-a981-ab8e24899399" xlink:to="loc_cdw_UnsecuredSeniorNotesMember_9089e189-ea9f-4591-808a-c4a1ada78054" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SeniorNotesdue2024Member_17c0f3cc-eadf-4b51-b928-879475642879" xlink:href="cdw-20210630.xsd#cdw_SeniorNotesdue2024Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_UnsecuredSeniorNotesMember_9089e189-ea9f-4591-808a-c4a1ada78054" xlink:to="loc_cdw_SeniorNotesdue2024Member_17c0f3cc-eadf-4b51-b928-879475642879" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SeniorNotesdueMay2025Member_4316c42c-f5d6-473c-af7f-da22eb6be0d6" xlink:href="cdw-20210630.xsd#cdw_SeniorNotesdueMay2025Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_UnsecuredSeniorNotesMember_9089e189-ea9f-4591-808a-c4a1ada78054" xlink:to="loc_cdw_SeniorNotesdueMay2025Member_4316c42c-f5d6-473c-af7f-da22eb6be0d6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SeniorNotesdue2028Member_b5618f85-38ac-4897-a5c2-f55ecae47c47" xlink:href="cdw-20210630.xsd#cdw_SeniorNotesdue2028Member"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_UnsecuredSeniorNotesMember_9089e189-ea9f-4591-808a-c4a1ada78054" xlink:to="loc_cdw_SeniorNotesdue2028Member_b5618f85-38ac-4897-a5c2-f55ecae47c47" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SeniorNotesDue2029Member_2826fcf8-758a-4bc6-a55b-29471a2cf383" xlink:href="cdw-20210630.xsd#cdw_SeniorNotesDue2029Member"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_UnsecuredSeniorNotesMember_9089e189-ea9f-4591-808a-c4a1ada78054" xlink:to="loc_cdw_SeniorNotesDue2029Member_2826fcf8-758a-4bc6-a55b-29471a2cf383" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_OtherLongTermObligationsMember_8dbc8541-ca68-4faa-8e75-7cc5601110ce" xlink:href="cdw-20210630.xsd#cdw_OtherLongTermObligationsMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_3452e5ec-d499-48f5-a981-ab8e24899399" xlink:to="loc_cdw_OtherLongTermObligationsMember_8dbc8541-ca68-4faa-8e75-7cc5601110ce" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_d04d7793-3a9e-4ee2-8231-01b5cd253f62" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_cea8536b-cb86-4d80-a976-9dc0c0c2d4f8" xlink:to="loc_us-gaap_DebtInstrumentLineItems_d04d7793-3a9e-4ee2-8231-01b5cd253f62" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtWeightedAverageInterestRate_64a26997-77b3-4f74-a4af-d058f18913bf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongtermDebtWeightedAverageInterestRate"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_d04d7793-3a9e-4ee2-8231-01b5cd253f62" xlink:to="loc_us-gaap_LongtermDebtWeightedAverageInterestRate_64a26997-77b3-4f74-a4af-d058f18913bf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_45466caa-aa15-4b32-91f2-bc4be193333c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_d04d7793-3a9e-4ee2-8231-01b5cd253f62" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_45466caa-aa15-4b32-91f2-bc4be193333c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_35d2bf3f-8abb-46ef-a6f7-e9aa18d5bea9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_d04d7793-3a9e-4ee2-8231-01b5cd253f62" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_35d2bf3f-8abb-46ef-a6f7-e9aa18d5bea9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_LongtermDebtCurrentMaturitiesGross_2be7dd43-05cb-45e6-a77d-7fd3e416a314" xlink:href="cdw-20210630.xsd#cdw_LongtermDebtCurrentMaturitiesGross"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_d04d7793-3a9e-4ee2-8231-01b5cd253f62" xlink:to="loc_cdw_LongtermDebtCurrentMaturitiesGross_2be7dd43-05cb-45e6-a77d-7fd3e416a314" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_LongtermDebtExcludingCurrentMaturitiesNetofDeferredFinancingCostsDiscountorPremium_7cd214be-62a9-4972-ae76-4f0a375f0f45" xlink:href="cdw-20210630.xsd#cdw_LongtermDebtExcludingCurrentMaturitiesNetofDeferredFinancingCostsDiscountorPremium"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_d04d7793-3a9e-4ee2-8231-01b5cd253f62" xlink:to="loc_cdw_LongtermDebtExcludingCurrentMaturitiesNetofDeferredFinancingCostsDiscountorPremium_7cd214be-62a9-4972-ae76-4f0a375f0f45" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/LongTermDebtNarrativeDetails" xlink:type="simple" xlink:href="cdw-20210630.xsd#LongTermDebtNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/LongTermDebtNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_06f5fb2d-0062-4a93-af6a-5511fbc45b50" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_7e7a5776-99a1-4e0c-ba56-21f234ca1cb9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_06f5fb2d-0062-4a93-af6a-5511fbc45b50" xlink:to="loc_us-gaap_DebtInstrumentTable_7e7a5776-99a1-4e0c-ba56-21f234ca1cb9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_02d9dc37-411f-4b19-8f8d-2000103f2415" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_7e7a5776-99a1-4e0c-ba56-21f234ca1cb9" xlink:to="loc_us-gaap_DebtInstrumentAxis_02d9dc37-411f-4b19-8f8d-2000103f2415" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_93bf346f-eb6e-40dd-af1e-3050b595a775" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_02d9dc37-411f-4b19-8f8d-2000103f2415" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_93bf346f-eb6e-40dd-af1e-3050b595a775" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SeniorNotesdueMay2025Member_3ac281b3-8d4e-4801-8cc5-fd948341af78" xlink:href="cdw-20210630.xsd#cdw_SeniorNotesdueMay2025Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_93bf346f-eb6e-40dd-af1e-3050b595a775" xlink:to="loc_cdw_SeniorNotesdueMay2025Member_3ac281b3-8d4e-4801-8cc5-fd948341af78" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SeniorNotesDue2029Member_5f84f4ab-5e6e-4caa-a6c5-52668b5d2b83" xlink:href="cdw-20210630.xsd#cdw_SeniorNotesDue2029Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_93bf346f-eb6e-40dd-af1e-3050b595a775" xlink:to="loc_cdw_SeniorNotesDue2029Member_5f84f4ab-5e6e-4caa-a6c5-52668b5d2b83" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_InventoryFinancingAgreementsAxis_31aed293-9703-41db-a878-d9f1dffe6f85" xlink:href="cdw-20210630.xsd#cdw_InventoryFinancingAgreementsAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_7e7a5776-99a1-4e0c-ba56-21f234ca1cb9" xlink:to="loc_cdw_InventoryFinancingAgreementsAxis_31aed293-9703-41db-a878-d9f1dffe6f85" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_InventoryFinancingAgreementsDomain_c1d6235c-d073-45e0-a7c5-2936fdd861d3" xlink:href="cdw-20210630.xsd#cdw_InventoryFinancingAgreementsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_InventoryFinancingAgreementsAxis_31aed293-9703-41db-a878-d9f1dffe6f85" xlink:to="loc_cdw_InventoryFinancingAgreementsDomain_c1d6235c-d073-45e0-a7c5-2936fdd861d3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_AccountsPayableInventoryFinancingMember_8dbf95f7-a1d0-4e18-a59a-1afba722c66e" xlink:href="cdw-20210630.xsd#cdw_AccountsPayableInventoryFinancingMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_InventoryFinancingAgreementsDomain_c1d6235c-d073-45e0-a7c5-2936fdd861d3" xlink:to="loc_cdw_AccountsPayableInventoryFinancingMember_8dbf95f7-a1d0-4e18-a59a-1afba722c66e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_ebfa0b53-1d2d-4420-8261-ba19468e312f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_7e7a5776-99a1-4e0c-ba56-21f234ca1cb9" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_ebfa0b53-1d2d-4420-8261-ba19468e312f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_dbf1206b-57ad-4581-954c-5744646ec083" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_ebfa0b53-1d2d-4420-8261-ba19468e312f" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_dbf1206b-57ad-4581-954c-5744646ec083" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_CDWUKRevolvingCreditFacilityMember_ee3d6a42-e626-4b64-baca-66dfe75a508d" xlink:href="cdw-20210630.xsd#cdw_CDWUKRevolvingCreditFacilityMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_dbf1206b-57ad-4581-954c-5744646ec083" xlink:to="loc_cdw_CDWUKRevolvingCreditFacilityMember_ee3d6a42-e626-4b64-baca-66dfe75a508d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SeniorSecuredAssetBasedRevolvingCreditFacilityMember_85023d84-8183-4e80-ac81-91e3c7cae604" xlink:href="cdw-20210630.xsd#cdw_SeniorSecuredAssetBasedRevolvingCreditFacilityMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_dbf1206b-57ad-4581-954c-5744646ec083" xlink:to="loc_cdw_SeniorSecuredAssetBasedRevolvingCreditFacilityMember_85023d84-8183-4e80-ac81-91e3c7cae604" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_CDWUKTermLoanMember_f7dfb770-7ff0-41fe-8fe2-b466d33b8703" xlink:href="cdw-20210630.xsd#cdw_CDWUKTermLoanMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_dbf1206b-57ad-4581-954c-5744646ec083" xlink:to="loc_cdw_CDWUKTermLoanMember_f7dfb770-7ff0-41fe-8fe2-b466d33b8703" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SeniorSecuredTermLoanFacilityMember_b5864c2e-91de-4ae8-a4df-5be2a539deb0" xlink:href="cdw-20210630.xsd#cdw_SeniorSecuredTermLoanFacilityMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_dbf1206b-57ad-4581-954c-5744646ec083" xlink:to="loc_cdw_SeniorSecuredTermLoanFacilityMember_b5864c2e-91de-4ae8-a4df-5be2a539deb0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_RevolvingLoanMember_6ee7d6f9-de3a-4e87-9c63-056fcca00a1b" xlink:href="cdw-20210630.xsd#cdw_RevolvingLoanMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_dbf1206b-57ad-4581-954c-5744646ec083" xlink:to="loc_cdw_RevolvingLoanMember_6ee7d6f9-de3a-4e87-9c63-056fcca00a1b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_5b8da7e9-79b9-4482-85f8-edcb65fa62e6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_7e7a5776-99a1-4e0c-ba56-21f234ca1cb9" xlink:to="loc_us-gaap_DebtInstrumentLineItems_5b8da7e9-79b9-4482-85f8-edcb65fa62e6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_98d1fe1b-4678-4cab-93dc-6c670671da7c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LettersOfCreditOutstandingAmount"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5b8da7e9-79b9-4482-85f8-edcb65fa62e6" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_98d1fe1b-4678-4cab-93dc-6c670671da7c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_AmountOwedUnderRevolvingLoanFinancingAgreement_b001e294-4ea6-4493-93b7-b6cf0caabe46" xlink:href="cdw-20210630.xsd#cdw_AmountOwedUnderRevolvingLoanFinancingAgreement"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5b8da7e9-79b9-4482-85f8-edcb65fa62e6" xlink:to="loc_cdw_AmountOwedUnderRevolvingLoanFinancingAgreement_b001e294-4ea6-4493-93b7-b6cf0caabe46" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_LineOfCreditFacilityBorrowingBase_446ad327-c8a3-4c7c-b879-7f0664c6044d" xlink:href="cdw-20210630.xsd#cdw_LineOfCreditFacilityBorrowingBase"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5b8da7e9-79b9-4482-85f8-edcb65fa62e6" xlink:to="loc_cdw_LineOfCreditFacilityBorrowingBase_446ad327-c8a3-4c7c-b879-7f0664c6044d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_5bd5b96e-8bb4-4bae-95b6-3c161489fe2a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5b8da7e9-79b9-4482-85f8-edcb65fa62e6" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_5bd5b96e-8bb4-4bae-95b6-3c161489fe2a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentPeriodicPaymentPrincipal_2fccef8c-5e98-4248-b664-f68632c303e4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentPeriodicPaymentPrincipal"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5b8da7e9-79b9-4482-85f8-edcb65fa62e6" xlink:to="loc_us-gaap_DebtInstrumentPeriodicPaymentPrincipal_2fccef8c-5e98-4248-b664-f68632c303e4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries_74c40b7c-c23d-4c40-b04f-26e20a633514" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5b8da7e9-79b9-4482-85f8-edcb65fa62e6" xlink:to="loc_us-gaap_AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries_74c40b7c-c23d-4c40-b04f-26e20a633514" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_51e8eda8-8dbb-4ac8-98eb-83d2172c8765" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5b8da7e9-79b9-4482-85f8-edcb65fa62e6" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_51e8eda8-8dbb-4ac8-98eb-83d2172c8765" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/LongTermDebtFairValueofLongTermDebtDetails" xlink:type="simple" xlink:href="cdw-20210630.xsd#LongTermDebtFairValueofLongTermDebtDetails"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/LongTermDebtFairValueofLongTermDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_a4166d1c-8778-4f3d-a6f9-75c7c007558a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTable_81af7305-1a86-4632-98b6-ad93b305099f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueByBalanceSheetGroupingTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_a4166d1c-8778-4f3d-a6f9-75c7c007558a" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTable_81af7305-1a86-4632-98b6-ad93b305099f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_e4b6d514-b234-497f-894f-c5eddaf98bab" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_81af7305-1a86-4632-98b6-ad93b305099f" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_e4b6d514-b234-497f-894f-c5eddaf98bab" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_026fc72c-0651-485e-846f-d8a0851f051f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_e4b6d514-b234-497f-894f-c5eddaf98bab" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_026fc72c-0651-485e-846f-d8a0851f051f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_e14e6ac5-ad9f-48cb-8f8d-d74bdae8a5d7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_026fc72c-0651-485e-846f-d8a0851f051f" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_e14e6ac5-ad9f-48cb-8f8d-d74bdae8a5d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_8b4d2c7d-2a1c-4d4b-9afc-5be93adb04db" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_81af7305-1a86-4632-98b6-ad93b305099f" xlink:to="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_8b4d2c7d-2a1c-4d4b-9afc-5be93adb04db" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFairValue_b6ffcadd-0887-4d46-88f5-2e45bfda3b7f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFairValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_8b4d2c7d-2a1c-4d4b-9afc-5be93adb04db" xlink:to="loc_us-gaap_DebtInstrumentFairValue_b6ffcadd-0887-4d46-88f5-2e45bfda3b7f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_d3fe9ff5-73fd-4263-beae-938fa6e74d00" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_8b4d2c7d-2a1c-4d4b-9afc-5be93adb04db" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_d3fe9ff5-73fd-4263-beae-938fa6e74d00" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/IncomeTaxes" xlink:type="simple" xlink:href="cdw-20210630.xsd#IncomeTaxes"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/IncomeTaxes" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_fceac811-3ad1-49f9-9715-4a814df6464e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureTextBlock_1fa8fd78-4306-4ede-be33-37770a14eb9b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_fceac811-3ad1-49f9-9715-4a814df6464e" xlink:to="loc_us-gaap_IncomeTaxDisclosureTextBlock_1fa8fd78-4306-4ede-be33-37770a14eb9b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/IncomeTaxesNarrativeDetails" xlink:type="simple" xlink:href="cdw-20210630.xsd#IncomeTaxesNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/IncomeTaxesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_f40ec325-94eb-4256-a869-218cf0b4b9e1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_a4cc3d52-4466-435a-af41-26ca3d40027b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_f40ec325-94eb-4256-a869-218cf0b4b9e1" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_a4cc3d52-4466-435a-af41-26ca3d40027b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_41fbe389-b696-4b79-855b-42d6ce885a6e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_f40ec325-94eb-4256-a869-218cf0b4b9e1" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_41fbe389-b696-4b79-855b-42d6ce885a6e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/EarningsperShare" xlink:type="simple" xlink:href="cdw-20210630.xsd#EarningsperShare"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/EarningsperShare" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_8357f18b-83c2-4c55-9de4-05b6ef831d8e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareTextBlock_30f01ec5-5891-4ce9-b2bd-0ce08cf852a9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_8357f18b-83c2-4c55-9de4-05b6ef831d8e" xlink:to="loc_us-gaap_EarningsPerShareTextBlock_30f01ec5-5891-4ce9-b2bd-0ce08cf852a9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/EarningsperShareTables" xlink:type="simple" xlink:href="cdw-20210630.xsd#EarningsperShareTables"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/EarningsperShareTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_e32b6e75-254b-4b9c-8c4b-803ee57d6dad" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfWeightedAverageNumberOfSharesTableTextBlock_66e91f93-757f-4b07-b79b-bfa39a6de7e5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfWeightedAverageNumberOfSharesTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_e32b6e75-254b-4b9c-8c4b-803ee57d6dad" xlink:to="loc_us-gaap_ScheduleOfWeightedAverageNumberOfSharesTableTextBlock_66e91f93-757f-4b07-b79b-bfa39a6de7e5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/EarningsperShareDetails" xlink:type="simple" xlink:href="cdw-20210630.xsd#EarningsperShareDetails"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/EarningsperShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_840d1a94-e839-4219-9c27-a3e5d51db920" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_a8d3427a-a51d-4be4-b7f9-b76a4daa9f74" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_840d1a94-e839-4219-9c27-a3e5d51db920" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_a8d3427a-a51d-4be4-b7f9-b76a4daa9f74" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_01a50f8e-792d-46c3-9409-17727e0d0f65" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_840d1a94-e839-4219-9c27-a3e5d51db920" xlink:to="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_01a50f8e-792d-46c3-9409-17727e0d0f65" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_ba37a129-dda2-4c4c-af8a-1949649b3486" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_840d1a94-e839-4219-9c27-a3e5d51db920" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_ba37a129-dda2-4c4c-af8a-1949649b3486" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_95dc9bad-d16e-4ead-ba57-80516ebef938" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_840d1a94-e839-4219-9c27-a3e5d51db920" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_95dc9bad-d16e-4ead-ba57-80516ebef938" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/CommitmentsandContingencies" xlink:type="simple" xlink:href="cdw-20210630.xsd#CommitmentsandContingencies"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/CommitmentsandContingencies" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_80198daa-5d96-4399-81b5-a0152f8ec9a3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_e1044bdd-9dd5-4f11-85fc-80f5a76857a6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_80198daa-5d96-4399-81b5-a0152f8ec9a3" xlink:to="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_e1044bdd-9dd5-4f11-85fc-80f5a76857a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/SegmentInformation" xlink:type="simple" xlink:href="cdw-20210630.xsd#SegmentInformation"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/SegmentInformation" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_3cb7d512-a6f4-42ca-9c05-042169dd9479" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingDisclosureTextBlock_672740b7-7168-416c-b451-2c741e2737f1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_3cb7d512-a6f4-42ca-9c05-042169dd9479" xlink:to="loc_us-gaap_SegmentReportingDisclosureTextBlock_672740b7-7168-416c-b451-2c741e2737f1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/SegmentInformationTables" xlink:type="simple" xlink:href="cdw-20210630.xsd#SegmentInformationTables"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/SegmentInformationTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_c7866995-9926-4527-9f19-f6d77cf28390" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_6ca61c33-7247-4934-9dc9-523d2ff08d73" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_c7866995-9926-4527-9f19-f6d77cf28390" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_6ca61c33-7247-4934-9dc9-523d2ff08d73" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTableTextBlock_68df8b5c-9046-40b3-9bd9-be4b89b265c2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisaggregationOfRevenueTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_c7866995-9926-4527-9f19-f6d77cf28390" xlink:to="loc_us-gaap_DisaggregationOfRevenueTableTextBlock_68df8b5c-9046-40b3-9bd9-be4b89b265c2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/SegmentInformationNarrativeDetails" xlink:type="simple" xlink:href="cdw-20210630.xsd#SegmentInformationNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/SegmentInformationNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_8b0aa35f-8960-4284-9710-3c6991eebcd6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_a73278ec-9de6-40c9-8c48-6ca66e997137" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_8b0aa35f-8960-4284-9710-3c6991eebcd6" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_a73278ec-9de6-40c9-8c48-6ca66e997137" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_84d31329-2a98-4eee-ad57-5d65a2d189cb" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_a73278ec-9de6-40c9-8c48-6ca66e997137" xlink:to="loc_srt_RangeAxis_84d31329-2a98-4eee-ad57-5d65a2d189cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_4d26d2ab-3f80-4806-a133-68f76ac64aaf" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_84d31329-2a98-4eee-ad57-5d65a2d189cb" xlink:to="loc_srt_RangeMember_4d26d2ab-3f80-4806-a133-68f76ac64aaf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_bad1574b-d50c-4325-89e3-5e17b9b2955e" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MinimumMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_4d26d2ab-3f80-4806-a133-68f76ac64aaf" xlink:to="loc_srt_MinimumMember_bad1574b-d50c-4325-89e3-5e17b9b2955e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_77a7b762-53e2-46b7-a69c-d5ef976deb7e" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MaximumMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_4d26d2ab-3f80-4806-a133-68f76ac64aaf" xlink:to="loc_srt_MaximumMember_77a7b762-53e2-46b7-a69c-d5ef976deb7e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_6b35446f-75fc-4841-901e-34bb464513d2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_a73278ec-9de6-40c9-8c48-6ca66e997137" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_6b35446f-75fc-4841-901e-34bb464513d2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_dea0d3d8-2da8-4df3-9165-691cb9616a1c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_6b35446f-75fc-4841-901e-34bb464513d2" xlink:to="loc_us-gaap_SegmentDomain_dea0d3d8-2da8-4df3-9165-691cb9616a1c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_CorporateSegmentPrivateSectorBusinessMember_3d4d8b17-3340-4203-bb24-dcdddf48529e" xlink:href="cdw-20210630.xsd#cdw_CorporateSegmentPrivateSectorBusinessMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_dea0d3d8-2da8-4df3-9165-691cb9616a1c" xlink:to="loc_cdw_CorporateSegmentPrivateSectorBusinessMember_3d4d8b17-3340-4203-bb24-dcdddf48529e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SmallBusinessMember_617654b5-153d-4251-811a-5438987d4e88" xlink:href="cdw-20210630.xsd#cdw_SmallBusinessMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_dea0d3d8-2da8-4df3-9165-691cb9616a1c" xlink:to="loc_cdw_SmallBusinessMember_617654b5-153d-4251-811a-5438987d4e88" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_18ebce92-f5a7-4bea-aac2-1a5eef96a9bf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_a73278ec-9de6-40c9-8c48-6ca66e997137" xlink:to="loc_us-gaap_SegmentReportingInformationLineItems_18ebce92-f5a7-4bea-aac2-1a5eef96a9bf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_5d6e3651-0239-4efb-a0a1-60b7b3a10495" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NumberOfReportableSegments"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_18ebce92-f5a7-4bea-aac2-1a5eef96a9bf" xlink:to="loc_us-gaap_NumberOfReportableSegments_5d6e3651-0239-4efb-a0a1-60b7b3a10495" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SegmentReportingCustomerSegmentsCustomerEmployeeHeadcount_a6a8c3ff-d60e-4fdc-a105-9fbe645627c5" xlink:href="cdw-20210630.xsd#cdw_SegmentReportingCustomerSegmentsCustomerEmployeeHeadcount"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_18ebce92-f5a7-4bea-aac2-1a5eef96a9bf" xlink:to="loc_cdw_SegmentReportingCustomerSegmentsCustomerEmployeeHeadcount_a6a8c3ff-d60e-4fdc-a105-9fbe645627c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_NumberofOperatingSegmentsReportableUnitQuantitativeThresholdNotMet_a6d8e5c3-ee5f-44fe-b79c-36a02ed5ad59" xlink:href="cdw-20210630.xsd#cdw_NumberofOperatingSegmentsReportableUnitQuantitativeThresholdNotMet"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_18ebce92-f5a7-4bea-aac2-1a5eef96a9bf" xlink:to="loc_cdw_NumberofOperatingSegmentsReportableUnitQuantitativeThresholdNotMet_a6d8e5c3-ee5f-44fe-b79c-36a02ed5ad59" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/SegmentInformationScheduleofSegmentInformationDetails" xlink:type="simple" xlink:href="cdw-20210630.xsd#SegmentInformationScheduleofSegmentInformationDetails"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/SegmentInformationScheduleofSegmentInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_4c3beab3-f777-4abc-b581-2e6b75173688" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_6e197b08-c9c0-4738-930a-f37200c48150" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_4c3beab3-f777-4abc-b581-2e6b75173688" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_6e197b08-c9c0-4738-930a-f37200c48150" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_4f5d968a-bb7e-444b-82bc-4739f75fe4d0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidationItemsAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_6e197b08-c9c0-4738-930a-f37200c48150" xlink:to="loc_srt_ConsolidationItemsAxis_4f5d968a-bb7e-444b-82bc-4739f75fe4d0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_7f7774fd-652c-44dc-a12c-e35106699ea2" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidationItemsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ConsolidationItemsAxis_4f5d968a-bb7e-444b-82bc-4739f75fe4d0" xlink:to="loc_srt_ConsolidationItemsDomain_7f7774fd-652c-44dc-a12c-e35106699ea2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_3f6a1442-1c68-4209-9715-2bed3528d3b0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingSegmentsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ConsolidationItemsDomain_7f7774fd-652c-44dc-a12c-e35106699ea2" xlink:to="loc_us-gaap_OperatingSegmentsMember_3f6a1442-1c68-4209-9715-2bed3528d3b0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateNonSegmentMember_fef6d2ee-67f4-4eec-be9c-455fbfa85388" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CorporateNonSegmentMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ConsolidationItemsDomain_7f7774fd-652c-44dc-a12c-e35106699ea2" xlink:to="loc_us-gaap_CorporateNonSegmentMember_fef6d2ee-67f4-4eec-be9c-455fbfa85388" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_c46e6b70-7988-4f02-af8a-45fb76f6d199" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_6e197b08-c9c0-4738-930a-f37200c48150" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_c46e6b70-7988-4f02-af8a-45fb76f6d199" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_45b21887-3306-452b-8725-38ec09942067" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_c46e6b70-7988-4f02-af8a-45fb76f6d199" xlink:to="loc_us-gaap_SegmentDomain_45b21887-3306-452b-8725-38ec09942067" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_CorporateSegmentPrivateSectorBusinessMember_8d9259b2-32f4-4dff-8367-1733830d0c8b" xlink:href="cdw-20210630.xsd#cdw_CorporateSegmentPrivateSectorBusinessMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_45b21887-3306-452b-8725-38ec09942067" xlink:to="loc_cdw_CorporateSegmentPrivateSectorBusinessMember_8d9259b2-32f4-4dff-8367-1733830d0c8b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SmallBusinessMember_bf947616-094c-4791-a0fd-8d241e9bf9fe" xlink:href="cdw-20210630.xsd#cdw_SmallBusinessMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_45b21887-3306-452b-8725-38ec09942067" xlink:to="loc_cdw_SmallBusinessMember_bf947616-094c-4791-a0fd-8d241e9bf9fe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_PublicSegmentGovernmentAgenciesEducationandHealthcareMember_5988cdc4-4f6e-4548-b2e8-1aff63f8a5b4" xlink:href="cdw-20210630.xsd#cdw_PublicSegmentGovernmentAgenciesEducationandHealthcareMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_45b21887-3306-452b-8725-38ec09942067" xlink:to="loc_cdw_PublicSegmentGovernmentAgenciesEducationandHealthcareMember_5988cdc4-4f6e-4548-b2e8-1aff63f8a5b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllOtherSegmentsMember_62f3ef14-242b-41ff-aa3f-1ec69bcc102e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AllOtherSegmentsMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_45b21887-3306-452b-8725-38ec09942067" xlink:to="loc_us-gaap_AllOtherSegmentsMember_62f3ef14-242b-41ff-aa3f-1ec69bcc102e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_49d39217-bfd4-4446-b835-4293bf63523e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_6e197b08-c9c0-4738-930a-f37200c48150" xlink:to="loc_us-gaap_SegmentReportingInformationLineItems_49d39217-bfd4-4446-b835-4293bf63523e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_1f22f72d-3128-4f6c-b125-382ea92e0677" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_49d39217-bfd4-4446-b835-4293bf63523e" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_1f22f72d-3128-4f6c-b125-382ea92e0677" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_cfeb7796-6801-46fc-9b26-bdd4bc15d78c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_49d39217-bfd4-4446-b835-4293bf63523e" xlink:to="loc_us-gaap_OperatingIncomeLoss_cfeb7796-6801-46fc-9b26-bdd4bc15d78c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_584c754d-d1bb-4dd4-96d6-8cd999566e9c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_49d39217-bfd4-4446-b835-4293bf63523e" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_584c754d-d1bb-4dd4-96d6-8cd999566e9c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/SegmentInformationDisaggregationofRevenueDetails" xlink:type="simple" xlink:href="cdw-20210630.xsd#SegmentInformationDisaggregationofRevenueDetails"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/SegmentInformationDisaggregationofRevenueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_71451819-80fe-40a6-918f-4a6e64ebe510" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_3f40e630-7b68-4230-b6f2-11266ed551dd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_71451819-80fe-40a6-918f-4a6e64ebe510" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_3f40e630-7b68-4230-b6f2-11266ed551dd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_f32779bf-4b98-4afc-a1d6-83b790cdc20f" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_StatementGeographicalAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_3f40e630-7b68-4230-b6f2-11266ed551dd" xlink:to="loc_srt_StatementGeographicalAxis_f32779bf-4b98-4afc-a1d6-83b790cdc20f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_5dd09fe0-f9ab-4a69-acda-792bd4f42ee4" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_SegmentGeographicalDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_StatementGeographicalAxis_f32779bf-4b98-4afc-a1d6-83b790cdc20f" xlink:to="loc_srt_SegmentGeographicalDomain_5dd09fe0-f9ab-4a69-acda-792bd4f42ee4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_1bc467f2-5aca-4bbf-a2d6-d2d5b61041e3" xlink:href="https://xbrl.sec.gov/country/2021/country-2021.xsd#country_US"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_5dd09fe0-f9ab-4a69-acda-792bd4f42ee4" xlink:to="loc_country_US_1bc467f2-5aca-4bbf-a2d6-d2d5b61041e3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonUsMember_770a1a1f-6bde-47fe-8064-aefc73797fc9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NonUsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_5dd09fe0-f9ab-4a69-acda-792bd4f42ee4" xlink:to="loc_us-gaap_NonUsMember_770a1a1f-6bde-47fe-8064-aefc73797fc9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_826353cd-389d-4612-9fb5-737833cbde05" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductOrServiceAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_3f40e630-7b68-4230-b6f2-11266ed551dd" xlink:to="loc_srt_ProductOrServiceAxis_826353cd-389d-4612-9fb5-737833cbde05" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_b2442ac8-ef6d-4fb0-812a-6609754c28ff" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductsAndServicesDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductOrServiceAxis_826353cd-389d-4612-9fb5-737833cbde05" xlink:to="loc_srt_ProductsAndServicesDomain_b2442ac8-ef6d-4fb0-812a-6609754c28ff" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_TotalHardwareMember_da71d5bd-fb60-4362-94d5-927c97dbad77" xlink:href="cdw-20210630.xsd#cdw_TotalHardwareMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductsAndServicesDomain_b2442ac8-ef6d-4fb0-812a-6609754c28ff" xlink:to="loc_cdw_TotalHardwareMember_da71d5bd-fb60-4362-94d5-927c97dbad77" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_NotebooksMobileDevicesMember_90e9642b-2adc-4830-96f1-ef6fff4db017" xlink:href="cdw-20210630.xsd#cdw_NotebooksMobileDevicesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_TotalHardwareMember_da71d5bd-fb60-4362-94d5-927c97dbad77" xlink:to="loc_cdw_NotebooksMobileDevicesMember_90e9642b-2adc-4830-96f1-ef6fff4db017" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_NetcommProductsMember_fe23f2bf-73ea-4bc3-bae5-a4e2e9d10f8b" xlink:href="cdw-20210630.xsd#cdw_NetcommProductsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_TotalHardwareMember_da71d5bd-fb60-4362-94d5-927c97dbad77" xlink:to="loc_cdw_NetcommProductsMember_fe23f2bf-73ea-4bc3-bae5-a4e2e9d10f8b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_DesktopsMember_fd422859-08d3-426d-8103-e5d521ff7f00" xlink:href="cdw-20210630.xsd#cdw_DesktopsMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_TotalHardwareMember_da71d5bd-fb60-4362-94d5-927c97dbad77" xlink:to="loc_cdw_DesktopsMember_fd422859-08d3-426d-8103-e5d521ff7f00" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_VideoMember_f2d0d698-2a63-41a3-ad16-c7480fa169fd" xlink:href="cdw-20210630.xsd#cdw_VideoMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_TotalHardwareMember_da71d5bd-fb60-4362-94d5-927c97dbad77" xlink:to="loc_cdw_VideoMember_f2d0d698-2a63-41a3-ad16-c7480fa169fd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_EnterpriseAndDataStorageIncludingDrivesMember_e3649cf9-9047-4187-a852-b24a0df2be61" xlink:href="cdw-20210630.xsd#cdw_EnterpriseAndDataStorageIncludingDrivesMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_TotalHardwareMember_da71d5bd-fb60-4362-94d5-927c97dbad77" xlink:to="loc_cdw_EnterpriseAndDataStorageIncludingDrivesMember_e3649cf9-9047-4187-a852-b24a0df2be61" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_OtherHardwareMember_aafce099-ce39-4bfe-8277-70c7b46c9d9b" xlink:href="cdw-20210630.xsd#cdw_OtherHardwareMember"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cdw_TotalHardwareMember_da71d5bd-fb60-4362-94d5-927c97dbad77" xlink:to="loc_cdw_OtherHardwareMember_aafce099-ce39-4bfe-8277-70c7b46c9d9b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SoftwareProductsMember_29788d45-cdcf-4661-85f9-535852eb2cad" xlink:href="cdw-20210630.xsd#cdw_SoftwareProductsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductsAndServicesDomain_b2442ac8-ef6d-4fb0-812a-6609754c28ff" xlink:to="loc_cdw_SoftwareProductsMember_29788d45-cdcf-4661-85f9-535852eb2cad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_ServicesMember_ec0d67aa-75f7-45df-bce5-cd04bf7a75ee" xlink:href="cdw-20210630.xsd#cdw_ServicesMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductsAndServicesDomain_b2442ac8-ef6d-4fb0-812a-6609754c28ff" xlink:to="loc_cdw_ServicesMember_ec0d67aa-75f7-45df-bce5-cd04bf7a75ee" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_OtherProductsAndServicesMember_b8c681f8-b817-476f-9d5d-4d1c7874ac3c" xlink:href="cdw-20210630.xsd#cdw_OtherProductsAndServicesMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductsAndServicesDomain_b2442ac8-ef6d-4fb0-812a-6609754c28ff" xlink:to="loc_cdw_OtherProductsAndServicesMember_b8c681f8-b817-476f-9d5d-4d1c7874ac3c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelAxis_d975a2fe-5a8f-4e27-9f8a-746db014e35a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerSalesChannelAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_3f40e630-7b68-4230-b6f2-11266ed551dd" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelAxis_d975a2fe-5a8f-4e27-9f8a-746db014e35a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelDomain_e391f297-9d3e-4e75-b7b6-680cfe4419be" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerSalesChannelDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelAxis_d975a2fe-5a8f-4e27-9f8a-746db014e35a" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelDomain_e391f297-9d3e-4e75-b7b6-680cfe4419be" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SalesChannelCorporateMember_7579f59d-657b-4055-b288-ea383f2e8da3" xlink:href="cdw-20210630.xsd#cdw_SalesChannelCorporateMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_e391f297-9d3e-4e75-b7b6-680cfe4419be" xlink:to="loc_cdw_SalesChannelCorporateMember_7579f59d-657b-4055-b288-ea383f2e8da3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SalesChannelSmallBusinessMember_f9b85a15-adb6-4218-abf0-a09d4adaf2b2" xlink:href="cdw-20210630.xsd#cdw_SalesChannelSmallBusinessMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_e391f297-9d3e-4e75-b7b6-680cfe4419be" xlink:to="loc_cdw_SalesChannelSmallBusinessMember_f9b85a15-adb6-4218-abf0-a09d4adaf2b2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SalesChannelGovernmentMember_2e288a6f-1a28-4f88-b3fe-540b160977c7" xlink:href="cdw-20210630.xsd#cdw_SalesChannelGovernmentMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_e391f297-9d3e-4e75-b7b6-680cfe4419be" xlink:to="loc_cdw_SalesChannelGovernmentMember_2e288a6f-1a28-4f88-b3fe-540b160977c7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SalesChannelEducationMember_eae3eecd-7890-4705-87bc-570586cf08a3" xlink:href="cdw-20210630.xsd#cdw_SalesChannelEducationMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_e391f297-9d3e-4e75-b7b6-680cfe4419be" xlink:to="loc_cdw_SalesChannelEducationMember_eae3eecd-7890-4705-87bc-570586cf08a3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SalesChannelHealthcareMember_3c88ab02-b05b-44ae-8af9-b1c0ffe74578" xlink:href="cdw-20210630.xsd#cdw_SalesChannelHealthcareMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_e391f297-9d3e-4e75-b7b6-680cfe4419be" xlink:to="loc_cdw_SalesChannelHealthcareMember_3c88ab02-b05b-44ae-8af9-b1c0ffe74578" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SalesChannelOtherMember_bfbd2a4b-9a71-4d41-82cd-d9be8eb09b63" xlink:href="cdw-20210630.xsd#cdw_SalesChannelOtherMember"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_e391f297-9d3e-4e75-b7b6-680cfe4419be" xlink:to="loc_cdw_SalesChannelOtherMember_bfbd2a4b-9a71-4d41-82cd-d9be8eb09b63" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_0ad18dd0-cb52-44a7-91cc-154c1dab3d0a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TimingOfTransferOfGoodOrServiceAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_3f40e630-7b68-4230-b6f2-11266ed551dd" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_0ad18dd0-cb52-44a7-91cc-154c1dab3d0a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_dbd09eee-192f-4dd9-aeef-dbd6e7d928bb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TimingOfTransferOfGoodOrServiceDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_0ad18dd0-cb52-44a7-91cc-154c1dab3d0a" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_dbd09eee-192f-4dd9-aeef-dbd6e7d928bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_TransferredAtPointInTimePrincipalMember_4e2e662d-e24f-4a8f-b9b2-fad329cb601a" xlink:href="cdw-20210630.xsd#cdw_TransferredAtPointInTimePrincipalMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_dbd09eee-192f-4dd9-aeef-dbd6e7d928bb" xlink:to="loc_cdw_TransferredAtPointInTimePrincipalMember_4e2e662d-e24f-4a8f-b9b2-fad329cb601a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_TransferredAtPointInTimeAgentMember_b0473956-0537-4178-bd2a-fe5696e3eee2" xlink:href="cdw-20210630.xsd#cdw_TransferredAtPointInTimeAgentMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_dbd09eee-192f-4dd9-aeef-dbd6e7d928bb" xlink:to="loc_cdw_TransferredAtPointInTimeAgentMember_b0473956-0537-4178-bd2a-fe5696e3eee2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_TransferredOverTimePrincipalMember_2716dd28-349b-492a-b249-e54a96b34fae" xlink:href="cdw-20210630.xsd#cdw_TransferredOverTimePrincipalMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_dbd09eee-192f-4dd9-aeef-dbd6e7d928bb" xlink:to="loc_cdw_TransferredOverTimePrincipalMember_2716dd28-349b-492a-b249-e54a96b34fae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_442e3d90-ee0a-4473-bc59-a7b812c0f984" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_3f40e630-7b68-4230-b6f2-11266ed551dd" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_442e3d90-ee0a-4473-bc59-a7b812c0f984" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_ad7e6cf3-c853-4d67-a8eb-26c656250de1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_442e3d90-ee0a-4473-bc59-a7b812c0f984" xlink:to="loc_us-gaap_SegmentDomain_ad7e6cf3-c853-4d67-a8eb-26c656250de1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_CorporateSegmentPrivateSectorBusinessMember_1c39da3b-b185-49a6-b29f-d2122033c775" xlink:href="cdw-20210630.xsd#cdw_CorporateSegmentPrivateSectorBusinessMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_ad7e6cf3-c853-4d67-a8eb-26c656250de1" xlink:to="loc_cdw_CorporateSegmentPrivateSectorBusinessMember_1c39da3b-b185-49a6-b29f-d2122033c775" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_SmallBusinessMember_59fcc951-e6ec-4bf7-a6a9-7c93ea7c73bf" xlink:href="cdw-20210630.xsd#cdw_SmallBusinessMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_ad7e6cf3-c853-4d67-a8eb-26c656250de1" xlink:to="loc_cdw_SmallBusinessMember_59fcc951-e6ec-4bf7-a6a9-7c93ea7c73bf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_PublicSegmentGovernmentAgenciesEducationandHealthcareMember_491d1c56-4dc2-4067-96ab-1d3ab6e3a844" xlink:href="cdw-20210630.xsd#cdw_PublicSegmentGovernmentAgenciesEducationandHealthcareMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_ad7e6cf3-c853-4d67-a8eb-26c656250de1" xlink:to="loc_cdw_PublicSegmentGovernmentAgenciesEducationandHealthcareMember_491d1c56-4dc2-4067-96ab-1d3ab6e3a844" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllOtherSegmentsMember_23ff9076-040c-43fd-9462-69699270bc67" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AllOtherSegmentsMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_ad7e6cf3-c853-4d67-a8eb-26c656250de1" xlink:to="loc_us-gaap_AllOtherSegmentsMember_23ff9076-040c-43fd-9462-69699270bc67" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_6a4b6b36-b4a0-40e4-be08-dba1c1fc2b74" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_3f40e630-7b68-4230-b6f2-11266ed551dd" xlink:to="loc_us-gaap_DisaggregationOfRevenueLineItems_6a4b6b36-b4a0-40e4-be08-dba1c1fc2b74" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_c05111fa-7209-4b53-80ee-331f67ecfa4f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_6a4b6b36-b4a0-40e4-be08-dba1c1fc2b74" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_c05111fa-7209-4b53-80ee-331f67ecfa4f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_cdw_RevenuenetbyProductandServicePercentage_76d26d3b-d556-4ec8-a7e8-fb31371bf154" xlink:href="cdw-20210630.xsd#cdw_RevenuenetbyProductandServicePercentage"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_6a4b6b36-b4a0-40e4-be08-dba1c1fc2b74" xlink:to="loc_cdw_RevenuenetbyProductandServicePercentage_76d26d3b-d556-4ec8-a7e8-fb31371bf154" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.cdw.com/role/SubsequentEvent" xlink:type="simple" xlink:href="cdw-20210630.xsd#SubsequentEvent"/>
  <link:presentationLink xlink:role="http://www.cdw.com/role/SubsequentEvent" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventsAbstract_fdf022ec-d466-4889-95f7-ee16135a877d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventsTextBlock_540ab139-f6e1-4b46-a2d3-86ea6082ead3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventsTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventsAbstract_fdf022ec-d466-4889-95f7-ee16135a877d" xlink:to="loc_us-gaap_SubsequentEventsTextBlock_540ab139-f6e1-4b46-a2d3-86ea6082ead3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
