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8GB Memory for 2011-2012 MacBook Pro (Non-Retina)
CORSAIR 16GB (2 x 8GB) DDR3 1333 (PC3 10600) Memory for Apple Model CMSA16GX3M2A1333C9 System Specific Memory - Newegg.com
OWC 8GB PC3-12800 DDR3L 1600MHz SO-DIMM 204 Pin CL11 Memory Module Upgrade Compatible with iMac, Mac Mini, and MacBook Pro (OWC1600DDR3S8GB) at Amazon.com
PC3-12800 DDR3 1600MHz Memory - MacBook Pro, Mac mini, iMac