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Silver rectangular metal internal power supply unit with rear fan grille and power socket

HP

HP Z440 700 W Power Supply DPS-700AB 719795-004

SKU CH-59HE-4R69W

Delivers 700 W to HP Z440 workstations with multiple 12 V rails rated at 18 A each

  • Maximum Power700 W
  • Delivers 700 W maximum power for demanding workstation builds
  • Wide 100-240 V input voltage handles global mains supplies
  • 50-60 Hz input frequency matches standard grid power worldwide
  • Multiple +12 V rails each rated at 18 A for stable component power
  • Internal form factor fits HP Z440 chassis directly

Workstation replacement power supply

This 700 W unit is built as a direct replacement for the HP Z440 workstation. It accepts a universal 100-240 V input at 50-60 Hz and draws up to 9 A from the mains. The supply fits the standard internal form factor used by that chassis.

Multi-rail 12 V delivery under load

The output splits the +12 V rail into eight independent channels, each rated at 18 A. CPU0, CPU2, Vm, Vb, Vs, Vd, VG1 and VG2 all share the same current limit, so sustained demand spreads across the rails rather than concentrating on a single path. This arrangement helps the unit maintain stable voltage when several subsystems draw power simultaneously.

Internal mounting and fixed cabling

As an internal PSU, it mounts directly into the Z440 bay with the original screw pattern and connector layout. The fixed cable harness matches the workstation's motherboard, CPU and peripheral headers, so installation does not require adapter cables. Builders needing modular cables or a different form factor will not be served by this unit.

Highlights

  • Delivers 700 W maximum power for demanding workstation builds
  • Wide 100-240 V input voltage handles global mains supplies
  • 50-60 Hz input frequency matches standard grid power worldwide
  • Multiple +12 V rails each rated at 18 A for stable component power
  • Internal form factor fits HP Z440 chassis directly

Specifications

BrandHP
Maximum Power700 W

Questions about this item

How much heat and power draw should I expect from the 700 W PSU running continuously?

The unit accepts 100-240 V at 50-60 Hz and draws up to 9 A input while delivering 700 W across multiple +12 V rails each rated at 18 A.

What existing connectors or chassis features must my workstation already have for this PSU to fit and power on?

It is an internal HP Z440 form-factor supply designed for the proprietary motherboard and backplane connectors used in that chassis.

Will the DPS-700AB work reliably with the original Z440 motherboard and CPU power rails I am keeping?

Yes, it provides dedicated +12V CPU rails and six additional +12V rails at 18 A each, matching the Z440 power distribution design.

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