Amazon.com: HP Z420 Workstation, Quad Core Xeon CPU upto 3.8GHz CPU, 16GB DDR3 RAM, New 240GB SSD & New 1TB HDD, Windows 10 Pro, USB 3.0, Nvidia Quadro 2000 1GB Video Card,
Amazon.com: HP Z820 Workstation Intel Xeon 16 Core 2.6GHz 128GB RAM 500GB Solid State Drive + 2TB Hard Drive Dual NVIDIA Quadro FX 3800 Graphics CD/DVDRW Windows 10 Pro 64-bit (Renewed) : Electronics