Kingston Technology 16GB Non-ECC CL11 DIMM 1600MHz DDR3 RAM (KVR16N11K2/16) - Kit of 2 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
Crucial 16GB Single DDR3L 1600 MT/s (PC3L-12800) 204-Pin SODIMM Memory - CT204864BF160B at Amazon.com
Kingston Technology 16GB Non-ECC CL11 DIMM 1600MHz DDR3 RAM (KVR16N11K2/16) - Kit of 2 at Amazon.com