Amazon.com: Patriot 16GB(2x8GB) Viper III DDR3 1600MHz (PC3 12800) CL9 Desktop Memory With Black Mamba Heatsink - PV316G160C9K : Electronics
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 16GB PC12800 DDR3 1600MHz SO-DIMM Memory Compatible with 2015 (Late) iMac 27" w/ Retina 5K Models and Compatible PCs (OWC1600DDR3S16G) at Amazon .com
OWC 16GB (2x8GB) ram Upgrade PC3-12800 DDR3L 1600MHz sodimm 204 Pin CL11 Memory Upgrade Kit Compatible with Late iMac, Mac Mini, and MacBook Pro Computer at Amazon.com
Samsung 16GB (2 x 8GB) 204-pin SODIMM, DDR3 PC3L-12800, 1600MHz ram Memory Module for laptops (M471B1G73EB0-YK0 x 2) at Amazon.com