Avant 6GB(6x 1gb) AVF7228R61F9333G0-NYABP DDR3-1333 PC3-10600 ECC REG Server RAM
CMS 6GB (3X2GB) DDR3 10600 1333MHZ ECC Non Registered DIMM Memory Ram Upgrade Compatible with HP/Compaq® Workstation Z200 Ecc Unbuff for Server Only - B75 at Amazon.com
6GB RAM(3 x 2GB) Kingston PC3-10600 DDR3-1333 | eBay
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