Amazon.com: HP Z400 Workstation PC - Intel Xeon W3520 2.67 GHz Quad-Core CPU, 12 GB DDR3 RAM, 2 TB Hard Drive, DVD-ROM, Windows 7 Professional : Electronics
HP Z400 Workstation XEON W3550 3.06GHz / 16GB / 500Gb / Windows 7 | eBay
This is my HP Z400, upgraded with a Xeon X5690. 12gb of ram, 2x500gb SSD, 2x250gb HDD, GTX 960 (the gpu is totally overkill lol). This is my first server! Running pterodactyl
HP Z400 Workstation Tower Desktop PC (B) Refurbished Desktop | RefreshedByUs | Free One Year Warranty | Free Shipping RefreshedByUs.com
Gaming on a Cheap Xeon: The HP Z400 Workstation - Boiling Steam
HP Z400 Workstation Xeon W3520 2.66GHz Quad Core / 4GB / 320GB / DVD-RW / FX 580 – Garland Computers
DPS 475CB 1 A for HP Z400 Workstation Power Supply 468930 001 475W|PC Power Supplies| - AliExpress
HP Z400 Intel Xeon QUAD Core W3520@2.67GHz 8GB RAM 500GB HD Workstation PC Win10 6734961703543 | eBay
HP Z400 Workstation Xeon X5650 2.66ghz Hex Core / 12gb / 1Tb / Q600 / Win7 Pro – Garland Computers
HP Z400 Desktop Intel Xeon 2.80 GHz 4 GB 250 GB Windows 10 Pro 840226688824 | eBay
PC Motherboard for HP Z400 Tower PC 586968-001 586766-002