Apple Computer , iMac 21.5-inch 3.06/3.33 GHz Core 2 Duo (E7600, E8600), Order Number, MB950LL/A, Model Number, A1311, Model Year, Late 2009, Part Name, Video Card 256MB ATI Radeon HD, Manufacture Part Number, 730-0566 -A, 593-1000, Compatible Apple Order Number, MA950LL/A, MC413LL/A, Compatible Apple Model Number, A1311, EMC Number, EMC 2308, EEE Code, 7X2, 7X3, Compatible Apple Computer, iMac (21.5-inch, Late 2009), ,
Order you product here: 661-5308 Graphic Card 256MB ATI Radeon HD for iMac 21.5 inch Late 2009 A1311 MA950LL/A, MC413LL/A ( 730-0566-A, 593-1000 ), 661-5308
source http://info.applepartsellers.com/661-5308-graphic-card-256mb-ati-radeon-hd-for-imac-21-5-inch-late-2009-a1311-ma950ll-a-mc413ll-a-730-0566-a-593-1000