DDR3 RAM】 Gigastone Desktop RAM 16GB (2x8GB) DDR3 16GB DDR3-1600MHz PC3-12800 CL11 1.5V 240 Pin Unbuffered Non ECC UDIMM for PC Computer Desktop Memory Module (Desktop ONLY) 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
OWC 16.0GB (4 x 4GB) 1333MHz 204-Pin DDR3 SO-DIMM PC3-10600 CL9 Memory Compatible with iMac (OWC1333DDR3S16S) at Amazon.com