SSD Upgrade including Carrier for HP Z440 Workstation - Ready to install - Fox in the Box
How to Upgrade a HP Z400 from a HDD to SSD and Solve winload.exe BSOD Error - YouTube
320GB HP Z400 Workstation 3.5" SATA Hard Disk Drive (HDD) Replacement / Upgrade | eBay
Managed to get an old HP Z400 workstation for the equivalent of $75 USD. Xeon W3520, 6x2gb of ram and I replaced the Quadro FX580 with a GT 730 I had laying
How to install 16GB of memory/ram into an HP Z400 Workstation - YouTube