HP Rear Heatsink Fan Assembly and CPU Tray Retainer for Z8 G4 Workstation 907572-001 [907572-001] - $145.00 : Professional Multi Monitor Workstations, Graphics Card Experts
HP Z8 G4 Workstation Desktop, No CPU, No RAM, No GPU, No HS, No HDD =Barebone= | eBay
Amazon.com: HP Z8 G4 Workstation, 2X Intel Xeon Silver 4114 (20-Cores) up to 3.0GHz, 128GB DDR4, 512GB NVME M.2 Turbo Drive, Quadro P2000 5GB, USB 3.1, Windows 10 Pro (Renewed) : Electronics