HP Z440 Workstation 32GB RAM E5-1620v3 1x 3TB HDD & 1x 200GB SSD K2200 | eBay
HP Z440 Workstation - Intel E5 - 32GB RAM - 512 SSD for Sale in San Diego, CA - OfferUp
A-Tech 32GB Kit (2 x 16GB) for HP Z440 Workstation - DDR4 PC4-21300 2666Mhz ECC Registered RDIMM 2Rx4 - Server Specific Memory Ram (AT378360SRV-X2R2) at Amazon.com
HP Z440 Workstation 8-Core E5-1660 v4 3.20GHz 32GB RAM NVS 310 No HDD or OS | eBay