Kingston Technology 16GB 1866MHz DDR3 ECC Reg CL13 DIMM 2Rx4 Server & Workstation Memory KVR18R13D4/16 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