Amazon.com: Timetec 8GB Compatible for Apple DDR3 1333MHz PC3-10600 CL9 for Mac Book Pro (Early/Late 2011 13/15/17 inch), iMac (Mid 2010, Mid/Late 2011 21.5/27 inch), Mac Mini(Mid 2011) SODIMM MAC RAM Upgrade : Electronics
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Corsair PC3-10600 8GB SO-DIMM 1333 MHz PC3-10666 DDR3 SDRAM Memory (CMSA16GX3M2A1333C9) for sale online | eBay