Apple Computer iMac 21.5-inch 2.5/2.7 GHz Core i5 (i5-2400S, i5-2500S) iMac 21.5-inch 2.8 GHz Core i7 (i7-2600S) iMac 27-inch 2.7 /3.1 GHz (i5-2500S, i5-2400) iMac 27-inch 3.4 GHz Core i7 (i7-2600) Order Number MC309LL/A, MC812LL/A, MC813LL/A, MC814LL/A, MD063LL/A, BTO/CTO Model Number A1311, A1312 Part Name Memory 2GB DDR3 1333MHz Manufacture Part Number N/A EMC Number EMC […]