Amazon.com: HP xw4600 Workstation Core 2 Quad Q6600 2.4GHz 4GB 500GB DVD Quadro FX 1700 Vista Business w/RAID : Electronics
Refurbished: HP Z640 Workstation 2x E5-2620 v3 2.4GHz 12-Cores 96GB DDR4 Quadro K5000 1TB SSD + 2TB HDD Windows 10 Pro - Newegg.com
HP Z4 G4 Tower Workstation with Xeon® W (10 cores) & NVIDIA® Quadro® P2200 5 GB Graphics - HP Store UK
HP Quadro GP100 Graphics Card (Smart Buy) 1ZE81AT B&H Photo Video
HP Z600 CAD Workstation 256GB SSD+ 2TB HDD/ 32GB / Quadro 4000 [Z600-048] - $869.00 : Professional Multi Monitor Workstations, Graphics Card Experts
Refurbished: HP Z2 Mini G4 Workstation (Performance Unit) Intel Xeon E-2124G 3.4Ghz, 16GB DDR4 RAM, 1TB NVMe M.2 and 1TB SSD, Quadro P600 4GB, USB Type C, Windows 11 Pro (Grade B) -