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DDR3 RAM】 Gigastone Desktop RAM 8GB (2x4GB) DDR3 8GB DDR3-1600MHz PC3-12800 CL11 1.5V 240 Pin Unbuffered Non ECC UDIMM for PC Computer Desktop Memory Module (Desktop ONLY) at Amazon.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