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
4GB PC3-10600E 240 pin DDR3 1333MHz Dual Rank x8 CAS-9 ECC Unbuffered UB DIMM Server Memory for HP ProLiant DL360p Gen8 (G8) (PARTS-QUICK Brand). Equivalent to HP Part Number: 500672-B21 at Amazon.com
A-Tech 8GB Kit (2X 4GB) DDR3 1333MHz PC3-10600E 2Rx8 240-pin ECC-Unbuffered DIMM for HP Workstation Z200 and Z400 – Server Memory Ram Modules at Amazon .com