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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 WMUAYngaQw2AnCkUQ6i2a+h+RkZ8LxTbzwcznpVCQq/SbQHMpyyK6PVsMVB7MJo4
 kREdtqkNLoREk9x6CEX40g==

<SEC-DOCUMENT>0001179110-10-005895.txt : 20100323
<SEC-HEADER>0001179110-10-005895.hdr.sgml : 20100323
<ACCEPTANCE-DATETIME>20100323140325
ACCESSION NUMBER:		0001179110-10-005895
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:			Ashour Ayman S
		CENTRAL INDEX KEY:			0001480885

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-29440
		FILM NUMBER:		10698783

	MAIL ADDRESS:	
		STREET 1:		ETZELBLICKSTRASSE 1
		CITY:			SCHINDELEGGI
		STATE:			V8
		ZIP:			CH-8834

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>2010-03-16</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001480885</rptOwnerCik>
            <rptOwnerName>Ashour Ayman S</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1900 CARNEGIE AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>BUILDING B</rptOwnerStreet2>
            <rptOwnerCity>SANTA ANA</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92705</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman and CEO</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>G</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
                <footnoteId id="F3"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>117600</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2003653</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote 2</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Reflects a bona fide gift of 240,0000 shares of the Issuer's Common Stock, made to certain individuals including Joseph Tassone 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="F2">Reflects 100% of the shares held by BH Capital management, of which Mr. Ashour owns 49%.</footnote>
        <footnote id="F3">This Form 4/A is being filed to correct an inadvertent error in the disclosures contained in footnote 1 of the Form 4 for this Reporting Person filed on March 16, 2010.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Ayman S Ashour</signatureName>
        <signatureDate>2010-03-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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