Apple Part Nr.: 109-B80357-00. ATI Radeon HD 4670 256 MB Suitable for the iMac model 21.5" A1311 from 2010 and the 27" A1312 from 2009 NOT for the 2009 model of the A1311! Für das iMac Modell 21.5" A1311 von 2010 und das 27" A1312 von 2009 geeignet.
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