HP Z400 Workstation MT Intel Xeon W3550 3.07GHz 8GB RAM No HDD No OS
HP Z400 Workstation SF604UP W3550 2.40GHz/ 3GB RAM/ 160GB HDD [Z400] - $369.00 : Professional Multi Monitor Workstations, Graphics Card Experts
Solved: Z400 RAM - Page 2 - HP Support Community - 6148900
4GB RAM Memory Upgrade for HP Workstation Z400 PC3-10600E DDR3 1333MHz 2Rx8 ECC Unbuffered UB DIMM Module (MemoryMasters) at Amazon.com
16GB KIT (4 x 4GB) for HP-Compaq Z Workstation Series Z200 Z400 (4 DIMM Slots) Z400 (6 DIMM Slots). DIMM DDR3 ECC Registered PC3-10600E 1333MHz Dual Rank Server Ram Memory. Genuine A-Tech
CMS 8GB (2X4GB) DDR3 10600 1333MHZ ECC Non Registered DIMM Memory Ram Upgrade Compatible with HP/Compaq® Workstation Z400 Workstation for Server Only - B80 at Amazon.com
Solved: Z400 RAM - Page 2 - HP Support Community - 6148900
Norton Racing Ninja400R Ram Air Kit - Kawasaki Ninja 400 / Z400
A-Tech 24GB ECC Unbuffered Memory Kit (6 x 4GB) for HP Z400 Workstation - ECC UDIMM DDR3 PC3-10600 1333MHz 240-Pin DIMM 2Rx8 1.5V Dual Rank RAM (AM080899) at Amazon.com
HP Z400 Workstation MT Intel Xeon W3550 3.07GHz 8GB RAM No HDD No OS