719799-002 - HP - 1125-Watts 100-240V 50-60Hz Switching Power Supply Unit for Z840 WorkStation 719799-002 - HP - 1125-Watts 100-240V 50-60Hz Switching Power Supply Unit for Z840 WorkStation $474.08 $401.76
719799-001 - HP - 1275-Watt 80 Plus Gold Power Supply for Z840 Workstation 719799-001 - HP - 1275-Watt 80 Plus Gold Power Supply for Z840 Workstation $519.85 $440.55