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
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
Kingston Technology HyperX Impact 16GB (2 x 8G) 204-Pin DDR3 SO-DIMM DDR3L 1600 MHz (PC3L 12800) Laptop Memory Model HX316LS9IBK2/16
Kingston HyperX FURY 8GB Kit (2x4GB) 1866MHz DDR3 CL10 DIMM - Black (HX318C10FBK2/8) at Amazon.com