SAMSUNG 12GB 3x4GB Memory PC3L-10600R M393B5273CH0-YH9 COMP to SNP9J5WFC/4G T310 R310 at Amazon.com
Kingston 16GB DDR4 2666MHZ SODIMM at Amazon.com
CMS 12GB (3X4GB) DDR3 10600 1333MHZ ECC Registered DIMM Memory Ram Upgrade Compatible with HP/Compaq® Workstation Z600 C2 Seires Only Ddr3 Ecc Reg for Server Only - C20 at Amazon.com