Description
Apple 661-5939 SDRAM, 4GB, DDR3-1333, SO-DIMM – 21.5 – 27 inch iMac Mid 2011 – A1311, A1312. 661-5939 for A1311 21.5inch i5 2.5GHz Mid 11, A1311 21.5inch i5 2.7GHz Mid 11, A1311 21.5inch i7 2.8GHz Mid 11, A1312 27inch i5 2.7GHz Mid 11, A1312 27inch i5 3.1
