Corsair Apple Certified 16 GB (2x8 GB) DDR3 1600MHz (PC3 12800) Laptop Memory 1.35V at Amazon.com
Amazon.com: PATRIOT 16GB(2x8GB) Viper III DDR3 1866MHz (PC3 15000) CL10 Desktop Memory with Black Mamba Heatsink - PV316G186C0K : Electronics
Patriot Signature Line 16GB (2 x 8GB) DDR3 1600 MHz
G.Skill Ripjaws X Series 16 GB (2 x 8 GB) 240-Pin SDRAM (PC3-12800) DDR3 1600 CL10-10-10-30 1.50V Dual Channel Desktop Memory Model F3-12800CL10D-16GBXL at Amazon.com