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Red rectangular 1U server power supply unit with silver metal casing and black plastic handle

Supermicro

Supermicro PWS-654-1R 650W DC redundant server power supply

SKU CH-P5N8-ES6AR MPN PWS-654-1R

A 650 W DC-input redundant power module measuring 1.6 by 2.1 inches and weighing 10 lb

  • TypePower Module
  • 650 W output powers dense 1U server racks
  • DC input simplifies telco and edge deployments
  • Redundant hot-swap design keeps systems running during module failure
  • Compact 1.6" height fits standard 1U chassis slots
  • 10 lb weight eases handling during rack installation

Power module for 1U servers

The Supermicro PWS-654-1R is a 650 W DC input redundant power module designed for 1U rackmount servers. It delivers reliable power density in a compact form factor suited to high-availability environments.

Compatibility check before ordering

Verify that your chassis accepts 1U redundant power modules and provides a DC input source matching the unit's requirements. Confirm the physical slot dimensions align with the module's 1.6" height and 2.1" width before installation.

Integration into a redundant build

The module slides into a compatible redundant power cage, sharing load with a second unit for failover protection. Its approximate 10 lb weight is supported by the cage rails, freeing internal space that a monolithic supply would occupy.

Highlights

  • 650 W output powers dense 1U server racks
  • DC input simplifies telco and edge deployments
  • Redundant hot-swap design keeps systems running during module failure
  • Compact 1.6" height fits standard 1U chassis slots
  • 10 lb weight eases handling during rack installation

Specifications

BrandSuperMicro
TypePower Module

Questions about this item

Does the PWS-654-1R arrive with any cables or mounting rails, or must those be sourced separately?

The unit ships as the power module only; cables and rails for the 1U redundant chassis are not included and must be purchased separately.

How do I decide between available versions of the 650 W DC redundant supply for my rack?

This model is the single 1U 650 W DC-input module; select the quantity needed to fill the redundant bays of your Supermicro chassis.

What does the 650 W rating mean when the supply is installed in a live server?

It delivers up to 650 W of DC power to the system while sharing load with a second module for redundancy in a 1U form factor.

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