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Rectangular silver server power supply unit with rear connector and label reading 920W

Supermicro

Supermicro PWS-920P-SQ 920W server power supply

SKU CH-YEEY-1VBYP MPN PWS-920P-SQ

Delivers 920 W in a 2.99" x 1.57" x 14.17" redundant form factor with 12 V at 75 A and 5 V standby at 4 A

  • Max wattage920 W
  • Supply voltage+12 V@75A, 5 V Standby@4A
  • Product dimensions2.99 in × 1.57 in × 14.17 in
  • 920W maximum power supports demanding server workloads
  • Hot-swappable design enables replacement without system downtime
  • Compact 2.99" x 1.57" x 14.17" form factor fits dense chassis
  • +12V rail delivers 75A for high-current components
  • 5V standby at 4A maintains management functions

What this unit is

The Supermicro PWS-920P-SQ is a new 920W server power supply designed for rack-mount chassis. It delivers +12V at 75A and a 5V standby rail at 4A. The compact 2.99" x 1.57" x 14.17" form factor fits standard redundant bays. It targets administrators who need reliable AC power for mission-critical workloads.

The deciding specification

This module is an AC power supply, not a Battery Backup Power unit. It provides continuous 920W output without integrated battery runtime. Buyers requiring hold-up time during mains loss must add a separate BBP module such as the PWS-1K03B-1R to the same chassis. The choice hinges on whether you need pure AC redundancy or combined AC-plus-battery protection.

Who this suits and who should look elsewhere

Suits operators populating Supermicro 1U to 4U servers with hot-swappable AC redundancy. Suits builds where 920W per module matches the platform power budget. Not for buyers who need integrated battery backup in a single slot. Not for systems that demand a different input voltage range or connector layout than the standard redundant form factor provides.

How it compares

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

Price $189.99
Pricier than about 68% of the 3,798 comparable items (median $131.99).
Max wattage 920 W
Higher than about 73% of the 235 comparable items (median 668 W).

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Specifications

Product
Brand nameSuperMicro
Model namePWS-920P-SQ
Part numberPWS-920P-SQ
Power
Max wattage920 W
Supply voltage+12 V@75A, 5 V Standby@4A
Size & build
Product dimensions2.99 in × 1.57 in × 14.17 in
Shipping weight1.20 kg
Package size395 × 77 × 37 mm

Questions about this item

What does the 920W rating mean for a live server?

The unit can deliver up to 920 watts of total output power to the system components under normal operating conditions.

How does the +12V@75A input limit what the supply can provide?

The +12 volt rail is rated for 75 amps, which sets the maximum current available for processors, memory and add-in cards that draw from the 12 volt line.

Will the 2.99 by 1.57 by 14.17 inch form factor fit my Supermicro chassis?

Those dimensions match the standard redundant power supply footprint used in Supermicro 1U, 2U, 3U and 4U rackmount chassis.

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