Total Micro 4 GB DDR3 SDRAM Memory Module 55Y3711-TM at Amazon.com
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
Edgetech SDRAM 16 DDR3 1333 (PC3 10600) PE230364 at Amazon.com
HPE RAM Memory 1 x 4GB DDR3 SDRAM 4 DDR3 1600 DDR3 820077-B21 at Amazon.com
64GB DDR3 SDRAM Memory Module at Amazon.com
Corsair 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