HP Z420 Workstation Intel® Xeon® E5 Family Memory Type : DDR3 ECC RAM : 64GB Max Memory Storage : 11TB Max Storage Space Power Supply : 600w Power Supply
HP Z400 Workstation Intel® Xeon® 3000 Sequence Memory Type : DDR3 ECC RAM : 24GB Max Memory Storage : 2.4TB Max Storage Space Power Supply : 475w Power Supply