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
Corsair CML16GX3M2A1600C10B Vengeance LP Blue 16 GB (2x8 GB) DDR3 1600MHz (PC3 12800) Desktop Memory 1.5V at Amazon.com
ADATA XPG V2 Review: 2x8 GB at DDR3-2400 C11-13-13 1.65 V