CMS 6GB (3x2GB) DDR3 10600 1333MHZ ECC Non Registered DIMM Memory Ram Upgrade Compatible with HP/Compaq® Workstation Z600 DDR3 ECC UNBUFF for Server Only - B75 at Amazon.com
W1333UX6G9 Super Talent 2GB DDR3 Desktop Memory
16GB (2 x 8GB) RAM 240-Pin DDR3 2RX8 DIMM CL11 SDRAM DDR3L 1600 (PC3L 12800) Desktop Memory Model CT2K102464BD160B Compatible With HP ENVY 750-116 by Crucial RAM - Newegg.com
6GB KIT (3 x 2GB) for HP-Compaq Z Workstation Series Z400 (6 DIMM Slots). DIMM DDR3 ECC Unbuffered PC3-10600E 1333MHz Server Ram Memory. Genuine A-Tech Brand. at Amazon.com