
Amazon.com: High End Z840 Workstation, 2X E5-2690 v4 up to 3.5GHz (28 Cores Total), 256GB RAM, 4X 1TB SSD, Quadro P4000 8GB (4X Display Port), USB 3.0, Windows 10 Professional 64-bit (Renewed) : Electronics,

HP Z840 Tower Workstation - Intel Xeon E5-2680 V4 2.4GHz 14C CPU - 256GB (8 x 32GB) DDR4 RDIMM - 256GB NVMe M.2 SSD - AMD Firepro W7100 - Windows 10 ,

HP Z840 Tower Workstation - Intel Xeon E5-2680 V4 2.4GHz 14C CPU - 256GB (8 x 32GB) DDR4 RDIMM - 256GB NVMe M.2 SSD - AMD Firepro W7100 - Windows 10 ,

Amazon.com: HP Z840 Workstation (High End), 2X E5-2687W v4 up to 3.5GHz (24 Cores Total), 128GB DDR4 RAM, 4X 1TB SSD, NVIDIA Quadro M5000 8GB (4X Display Port), USB 3.0, Windows 10,

Amazon.com: HP Z840 Workstation, 2X Intel Xeon E5-2678 v3 up to 3.1GHz (24 Cores Total), 256GB DDR4, 4X 1TB SSD, Quadro M4000 8GB (4X Display Ports), USB 3.0, Windows 10 Professional 64-bit (