Silicon Power DDR3 16GB (2 x 8GB) 1600MHz (PC3 12800) 240-pin CL11 1.35V / 1.5V Unbuffered UDIMM PC Computer Desktop Memory Module Ram Upgrade at Amazon.com
ADATA 8GB DDR3L/DDR3 1600MHz 204-Pin SODIMM Laptop/Notebook Memory RAM Low Voltage (ADDS1600W8G11-R) at Amazon.com
JUHOR DDR3 Ram 16GB (8GBx2) 1600MHz PC3-12800 240-pin CL11 1.5V Non-ECC Unbuffered UDIMM Desktop Dual Channel SDRAM PC Computer Memory Module with Heatsink 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
parts-quick 8GB DDR3 Memory for Dell PowerEdge R720 Server PC3-12800 ECC Registered DIMM 240 pin 1600MHz RAM at Amazon.com