G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model (F3-12800CL9D-8GBRL) at Amazon.com
G.SKILL Ripjaws Series 4GB DDR3 1600 Desktop Memory - Newegg.com
G.SKILL Releases The World's Fastest DDR3 32GB (8GBx4) Memory at 3000MHz Extreme Speed Designed for 4th Gen Intel Core Processors and Z87 Motherboards - G.SKILL International Enterprise Co., Ltd.
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