CORSAIR 12GB DDR3 RAM - CORSAIR DOMINATOR and XMS3 (within 6 total sticks) | eBay
NeweggBusiness - CORSAIR Vengeance 12GB (3 x 4GB) 240-Pin PC RAM DDR3 1600 (PC3 12800) Desktop Memory Model CMZ12GX3M3A1600C9
12GB RAM - 8GB (2 x 4GB) Crucial DDR3L 1333 RAM & 4GB (2 x 2GB) Samsung 2Rx3 | eBay
Kingston 12GB (3 x 4GB) 240-Pin DDR3 SDRAM System Specific Memory for HP/Compaq - Newegg.com
CMS 12GB (3x4GB) DDR3 10600 1333MHZ ECC Non Registered DIMM Memory Ram Upgrade Compatible with HP/Compaq® Workstation Z600 B3 Series DDR3 ECC for Server Only - B81 at Amazon.com