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Silver rectangular redundant server PSU 13.58 x 2.99 x 1.58 inches 800W

Supermicro

Supermicro PWS-801-1R 800W server power supply

SKU CH-572Z-2TRT4 MPN PWS-801-1R

800 W redundant server power supply delivering 12 V at 66 A and 5 V standby at 4 A in a 13.58" x 2.99" x 1.58" form factor

  • Max wattage800 W
  • Output current+12 V@66A, +5VSB@4A
  • Product typeConsumer Electronics
  • Product dimensions13.58 in × 2.99 in × 1.58 in
  • 800 W maximum power supports demanding server workloads
  • +12 V rail delivers 66 A for high-current components
  • Redundant design protects against single-point power failure
  • Compact 13.58" x 2.99" x 1.58" form factor fits dense chassis
  • 5 V standby output supplies 4 A for management functions

Server-grade 800 W redundant unit

The Supermicro PWS-801-1R is an 800 W redundant power supply built for rackmount servers. It fits 1U and larger chassis that accept the 13.58" x 2.99" x 1.58" form factor and need hot-swap capability.

Single +12 V rail at 66 A

The unit delivers its full 800 W through a single +12 V rail rated at 66 A with a 5 V standby output of 4 A. All DC power comes from that one rail, so the total 12 V current budget is the hard limit for every component in the system.

Not for non-redundant or lower-wattage builds

Buyers who need a stand-alone supply without hot-swap redundancy or who are building a system that draws less than 800 W will not use the redundant architecture this model provides.

How it compares

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

Price $132.99
Typical for this category: the median of 3,798 items is $131.99.
Max wattage 800 W
Higher than about 70% of the 235 comparable items (median 668 W).

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Specifications

Product
Brand nameSuperMicro
Model namePWS-801-1R
Product typeConsumer Electronics
Power
Max wattage800 W
Output current+12 V@66A, +5VSB@4A
Size & build
Product dimensions13.58 in × 2.99 in × 1.58 in
Shipping weight2.06 kg
Package size434 × 180 × 117 mm

Questions about this item

Should I choose the 800W model or look for a different capacity?

The PWS-801-1R delivers 800W total output with +12V at 66A and +5VSB at 4A, matching Supermicro redundant server chassis designed for this wattage.

What does the 800W rating mean once installed in a server?

It provides up to 800W continuous power, with the +12V rail supplying 66A for CPUs and GPUs while +5VSB delivers 4A for management controllers.

Which power interface standard does this supply use and what does it limit?

It uses the SSI-EPS redundant form factor with standard 24-pin and 8-pin EPS connectors, limiting use to compatible Supermicro server backplanes.

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