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Rectangular silver metal server PSU with 24-pin connector and fan grille

Supermicro

Supermicro PWS-668-PQ 668W server power supply

SKU CH-ZBCZ-P730E MPN PWS-668-PQ

A 668W single PS2 server power supply with 24‑pin ATX output, 80 Plus Platinum efficiency and 100‑240V input

  • Max wattage668 W
  • Power supply redundancySingle
  • Main power connector24Pin
  • Output current20A @ +5 V, 54A @ +12 V, 15A @ +3.3 V
  • Supply voltage100–240 V
  • AC input frequency50/60 Hz
  • 668 W output powers demanding workstations
  • 80 Plus Platinum efficiency cuts energy waste
  • 24-pin ATX connector fits standard server boards
  • 54 A on the +12 V rail feeds high-draw CPUs
  • 100–240 V auto-ranging input suits global deployments

Server-grade ATX power supply

The Supermicro PWS-668-PQ delivers 668 W from a single PS2 form-factor unit with a 24-pin ATX main connector. It is built for workstations and desktops that require reliable multi-output power in a standard enclosure. The 80 Plus Platinum rating confirms high efficiency across typical load ranges. This unit suits builders who need server-class components without redundant architecture.

Sustained 668 W output

The supply provides continuous rated power rather than a short burst, with +12 V rail capacity of 54 A and +5 V rail capacity of 20 A. The +3.3 V rail supplies 15 A for legacy and auxiliary circuits. Efficiency remains high during extended operation thanks to the Platinum certification. Systems drawing near the maximum for long periods will stay within specification.

Thermals noise and power draw

Universal 100–240 V input at 50/60 Hz allows worldwide operation without switching. The 8 A input current at low line keeps branch-circuit demand moderate. Platinum efficiency reduces waste heat, so internal temperatures and fan speed stay lower than less efficient units under the same load. Dimensions of 5.91" x 3.39" x 7.28" fit standard ATX bays.

How it compares

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

Price $168.99
Pricier than about 62% of the 3,798 comparable items (median $131.99).
Max wattage 668 W
Typical for this category: the median of 235 items is 668 W.

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Specifications

Product
Brand nameSuperMicro
Model namePWS-668-PQ
Product typeATX
Power
Max wattage668 W
Power supply redundancySingle
Main power connector24Pin
Output current20A @ +5 V, 54A @ +12 V, 15A @ +3.3 V
Supply voltage100–240 V
AC input frequency50/60 Hz
Rated input current8A
Size & build
Product dimensions5.91 in × 3.39 in × 7.28 in
Shipping weight2.27 kg
Package size356 × 127 × 127 mm

Questions about this item

How much heat and noise does the 668W 80 Plus Platinum unit produce under continuous load?

The 80 Plus Platinum rating means the supply runs at high efficiency, so it draws less power from the wall and generates less waste heat than lower-rated units, keeping fan speeds lower during all-day operation.

Does the 24-pin ATX connector on this supply plug straight into a standard motherboard without extra cables?

Yes, the unit provides a native 24-pin ATX output plus 20 A on the +5 V rail, 54 A on the +12 V rail and 15 A on the +3.3 V rail, matching typical desktop and workstation board requirements.

Will the 5.91 x 3.39 x 7.28 inch PS2 form factor fit in the same chassis as my older ATX power supply?

The dimensions follow the standard PS2 footprint used by many legacy server and workstation cases, so it should occupy the same mounting space as an older ATX unit of the same form factor.

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