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
ADATA XPG V2 Review: 2x8 GB at DDR3-2800 12-14-14 1.65 V