Hynix Original 16GB kit (2 x 8GB), 240-pin DIMM,Unbuffered, Non ECC, DDR3 PC3-12800 Desktop Memory Module at Amazon.com
Crucial 16GB Single DDR3L 1600 MT/s (PC3-12800) DR x4 RDIMM 240-Pin Server Memory CT16G3ERSLD4160B at Amazon.com
ADATA Premier Series - DDR3 - 16 GB: 2 x 8 GB - SO-DIMM 204-pin - 1333 MHz / PC3-10600 - CL9 - 1.5 V - unbuffered - non-ECC - Walmart.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