Kingston HyperX Plug n Play 8 GB Kit (2x4GB Modules) 1600MHz DDR3 SODIMM Notebook/Netbook Memory 8 Dual Channel Kit (PC3 12800) 204-Pin KHX1600C9S3P1K2/8G at Amazon.com
G.SKILL Ripjaws X Series 8GB (2 x 4GB) Desktop Memory, 240-Pin DDR3 SDRAM, 1600 MHz, PC3 12800 (F3-12800CL9D-8GBXL) at Amazon.com
Silicon Power Hynix IC Compatible for Apple DDR3 DDR3L 16GB (2 x 8GB) RAM 1600MHz (PC3 12800) 204 pin CL11 1.35V Non ECC Unbuffered SODIMM Laptop Notebook Memory RAM Module Upgrade at Amazon.com
8GB (2 X 4GB) DDR3 1600MHz PC3-12800 240-pin Memory RAM DIMM Kit for Desktop PC by NEMIX RAM at Amazon.com
8GB G.Skill DDR3 PC3-12800 1600MHz CL11 NT Series Desktop Dual Channel Memory kit (2x4GB) at Amazon.com
16GB Kit 2 x 8GB DDR3 PC3-12800 1600 Mhz Desktop Memory 240 PIN Non-ECC CL 11 at Amazon.com
8GB G.Skill DDR3 PC3-12800 CL9 SQ Series Laptop Memory Dual Channel kit at Amazon.com