Apple Computer iMac 21.5-inch Core i5 2.5/2.7 GHz (I5-2400S, I5-2500S) iMac 21.5-inch Core i7 2.8 Ghz (I7-2600S) Order Number MC309LL/A Model Number A1311 Model Year Mid 2011 Part Name Logic Board 2.5 GHz Manufacture Part Number 820-2641-A Compatible Apple Order Number MC309LL/A, MC812LL/A Compatible Apple Model Number A1311 EMC Number EMC 2428 EEE Code DJWK […]