6GB (3 x 2GB) DDR3 1600MHz PC3-12800 240-PIN DIMM MEMORY KIT FOR DESKTOPS/PCs | eBay
Elpida 3 X PC3-10600U 2GB DDR3 RAM Memory-6GB TOTAL (EBJ21UE88Df0-DJ-F) | eBay
CMS 6GB (3X2GB) DDR3 10600 1333MHZ ECC Non Registered DIMM Memory Ram Upgrade Compatible with HP/Compaq® Workstation Z200 Z210 Z400 Z600 Z800 for Server Only - C80 at Amazon.com