Amazon.com: HP Z840 Workstation, 2X Intel Xeon E5-2678 v3 up to 3.1GHz (24 Cores Total), 128GB DDR4, 4X 1TB SSD, Quadro M2000 4GB (4X Display Ports), USB 3.0, Windows 10 Professional 64-bit (
Amazon.com: HP Z840 Workstation, 2X Intel Xeon E5-2678 v3 up to 3.1GHz (24 Cores Total), 128GB DDR4, 4X 1TB SSD, Quadro M2000 4GB (4X Display Ports), USB 3.0, Windows 10 Professional 64-bit (,HP Z840 Workstation,HP Z840 Workstation Case Chassis Barebone 731917-009,What is the most upgraded CPU model I may upgrade z840 to? - HP Support Community - 8418126,HP Z840 36C/72T Workstation Build - Desktop - ExtremeHW