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
HP 4 GB DDR3 SDRAM Memory Module - 4 GB (1 x 4 GB) - 1333MHz DDR3-1333/PC3-10600 - DDR3 SDRAM - 240-pin DIMM at Amazon.com
Kingston ValueRAM 3GB DDR3 SDRAM Memory Module at Amazon.com
Corsair 8GB DDR3 SDRAM Memory Module at Amazon.com
Axiom Memory 8GB DDR3 SDRAM Memory Module A2Z50AA-AX at Amazon.com
Edge 8GB DDR3 SDRAM Memory Module at Amazon.com
48GB (3X 16GB) Matched Pair 1333MHz 240-Pin SDRAM DIMM DDR3 (PC10600) Memory Upgrade Kit for PC Desktops, Mac Pro 'Nehalem' & 'Westmere' (OWC1333D3X9M048) at Amazon.com
G.SKILL F3-1600C9D-16GXM Ripjaws X Series 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory at Amazon.com
Edgetech SDRAM 16 DDR3 1333 (PC3 10600) PE230364 at Amazon.com
Crucial 12GB DDR3 SDRAM Memory Module (CT3KIT51272BB1339) at Amazon.com
Kingston 4 GB DDR3 SDRAM Memory Module 4 GB (1 x 4 GB) 1333MHz DDR3 SDRAM KTH9600B/4G at Amazon.com
HYNIX - IMSOURCING SK 4GB DDR3 SDRAM Memory Module - for Desktop PC, Workstation - 4 GB - DDR3-1600/PC3L-12800 DDR3 SDRAM - 1600 MHz - CL11-1.35 V - Non-ECC - Unbuffered - 240-pin - DIMM at Amazon.com