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
DDR3 RAM】 Gigastone Laptop RAM 8GB DDR3 8GB DDR3-1600MHz PC3-12800 CL11 1.35V 204 Pin Unbuffered Non ECC SODIMM for Notebook Laptop Memory Module ( Laptop ONLY) at Amazon.com