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
Samsung Original 16GB, (2 x 8GB) 240-pin DIMM, DDR3 PC3-12800, Desktop Memory Module at Amazon.com
JUHOR DDR3 RAM 8GB (4GBx2) 1600MHz (PC3 12800) 240-pin CL11 1.5V UDIMM Gaming Series Desktop Computer Memory Module with Heatsink at Amazon.com