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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001179110-10-005893.txt : 20100323
<SEC-HEADER>0001179110-10-005893.hdr.sgml : 20100323
<ACCEPTANCE-DATETIME>20100323140117
ACCESSION NUMBER:		0001179110-10-005893
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100315
FILED AS OF DATE:		20100323
DATE AS OF CHANGE:		20100323

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Tassone Joseph
		CENTRAL INDEX KEY:			0001480886

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-29440
		FILM NUMBER:		10698776

	MAIL ADDRESS:	
		STREET 1:		38 ROBINSON DRIVE
		CITY:			BEDFORD
		STATE:			MA
		ZIP:			01730

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SCM MICROSYSTEMS INC
		CENTRAL INDEX KEY:			0001036044
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER PERIPHERAL EQUIPMENT, NEC [3577]
		IRS NUMBER:				770444317
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		466 KATO TERRACE
		CITY:			FREMONT
		STATE:			CA
		ZIP:			94539
		BUSINESS PHONE:		949-250-8888

	MAIL ADDRESS:	
		STREET 1:		1900 CARNEGIE AVENUE
		STREET 2:		BUILDING B
		CITY:			SANTA ANA
		STATE:			CA
		ZIP:			92705
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4/A -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2010-03-15</periodOfReport>

    <dateOfOriginalSubmission>2010-03-18</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001036044</issuerCik>
        <issuerName>SCM MICROSYSTEMS INC</issuerName>
        <issuerTradingSymbol>INVE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001480886</rptOwnerCik>
            <rptOwnerName>Tassone Joseph</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1900-B CARNEGIE AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SANTA ANA</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92705</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Ex VP Technology &amp; Product Mgt</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-03-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>60999</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.7054</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>114679</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-03-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>43680</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.7170</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>158359</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-03-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>G</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F3"/>
                <footnoteId id="F4"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>62500</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>220859</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Reflects distribution of 104,679 shares of common stock of the Issuer by Mountain Partners AG to the Reporting Person.  Prior to such distribution, these shares were held by Mountain Partners AG as custodian on behalf of the Reporting Person following the business combination of the Issuer and Bluehill ID AG, a stock corporation incorporated in Switzerland (&quot;Bluehill ID&quot;), in which the Reporting Person received 104,679 shares of common stock of the Issuer in exchange for 201,306 bearer shares in Bluehill ID.</footnote>
        <footnote id="F2">Original cost basis of 1 CHF per share, or $1.7054, based on the average exchange rate for the month of November 2007 as reported on Oanda.com</footnote>
        <footnote id="F3">Reflects a bona fide gift to the Reporting Person of 62,500 shares of the Issuer's Common Stock by BH Capital Management AG, a company controlled by the Issuer's CEO and Chairman, Ayman S. Ashour, and Mountain Partners AG.  The closing price for the shares of Common Stock on such date, as reported by The NASDAQ Stock Market, was $1.84 per share.</footnote>
        <footnote id="F4">This Form 4/A is being filed to correct an inadvertent error in the disclosures contained in the number of shares shown and in footnote 3 of the Form 4/A for this Reporting Person filed on March 18, 2010</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Joseph Tassone</signatureName>
        <signatureDate>2010-03-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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