661-5938 SDRAM, 2GB, DDR3-1333, SO-DIMM - 21.5 - 27 inch iMac Mid 2011 - A1311, A1312

Apple 661-5938 SDRAM, 2GB, DDR3-1333, SO-DIMM - 21.5 - 27 inch iMac Mid 2011 - A1311, A1312. 661-5938 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 3.1GHz Mid 11, A1312 27inch i7 3.4GHz Mid 11. Apple Memory for iMac (21.5-inch Mid 2011), iMac (27-inch Mid 2011).