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
16GB DDR3-1866 (PC3-14900) Memory RAM Upgrade for The Dell Precision T7610 Server Memory at Amazon.com
Kingston Technology HyperX Plug n Play 16 GB Kit (2x8 GB) 1600MHz DDR3 PC3-12800 Non-ECC CL9 SODIMM 1.35V Notebook Memory KHX16LS9P1K2/16 at Amazon .com