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
Komputerbay 16GB Dual Channel Kit 2X 8GB 204pin DDR3-1066 SO-DIMM 1066 PC3-8500 (1066MHz, CL7) for Apple at Amazon.com