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Silver rectangular server power supply unit with HP branding and ventilation grille

HP

HP 1200W Common Slot High Efficiency Power Supply 578322-B21

SKU CH-K4FZ-N0XQ7

Delivers 1200 W with 94 % efficiency across a 100-240 V range in a Common Slot form factor

  • Max wattage1200 W
  • Power efficiency94
  • Supply voltage100–240 V
  • Product typePower Module
  • Delivers 1200W maximum power for demanding server workloads
  • Achieves 94% efficiency to reduce energy waste and heat
  • Accepts 100-240V input for global rack deployment
  • Common Slot design enables hot-plug redundancy in supported chassis
  • Supports HP Thermal Logic initiative for improved power management

1200W Common Slot Server Power Supply

This 1200W Common Slot power module delivers 94% efficiency for HP server chassis. It accepts 100 - 240 V input and is built for redundant configurations. The unit suits data-centre operators who need high-density power in a hot-plug form factor.

Platinum 94% Efficiency Benefit

The 94% efficiency rating reduces waste heat and lowers the energy drawn from the infrastructure. Reclaimed power capacity lets operators run more equipment without upgrading circuits. This directly supports the HP Thermal Logic initiative for denser deployments.

1200W Capacity and Headroom

At 1200W maximum output the supply handles demanding dual-processor workloads and multiple GPU accelerators. Redundant pairing provides fail-over headroom for mission-critical services. Single-unit deployments leave no redundancy margin if a module fails.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $31.99
Cheaper than about 92% of the 3,798 comparable items (median $131.99).
Max wattage 1200 W
Higher than about 80% of the 235 comparable items (median 668 W).

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Specifications

Product
Brand nameHP
Product typePower Module
Power
Max wattage1200 W
Power efficiency94
Supply voltage100–240 V

Questions about this item

Does the 1200W Common Slot unit contain any user-serviceable parts such as a replaceable fan or fuse?

The supply is a sealed Common Slot module with no user-serviceable components; any internal fault requires replacing the entire unit.

What limits continuous output before the 1200W supply throttles or shuts down?

The 1200 W rating is the sustained maximum; exceeding it triggers over-current protection and the unit will power off.

How much heat and fan noise should I expect when the 1200W module runs at full load 24/7?

At 94 % efficiency the waste heat is the difference between input and output power, and the internal fan ramps to exhaust it through the Common Slot opening.

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