G.SKILL 16GB (2 x 8G) 204-Pin SO-DIMM DDR3 1600 (PC3 12800) Laptop Memory F3-1600C10D-16GSQ at Amazon.com
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