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ATX 3.1 Power Supplies

All Power Supplies

81 ATX 3.1 power supplies from Corsair, MSI, ASUS and more. Most cost $95 to $259, and half cost less than $140.

Top brands: Corsair (14)MSI (10)ASUS (8)

CorsairSpec score 8.8

850 Watts, Gold, ATX, Fully modular

−850 watts: 53 of the 87 here have more watts
$114.93-21%List: $144.99
as of 11/04/2026 13:10 PST - Details
CorsairSpec score 8.9

1000 Watts, Gold, ATX, Fully modular

+1000 watt output for high-power systems
+ATX 3.1 standard supports newer GPUs
+16-pin GPU connector for modern graphics cards
$104.99-45%List: $189.99
as of 11/04/2026 13:10 PST - Details
MSISpec score 9.1

1000 Watts, Platinum, ATX, Fully modular

+1000W output for high-power gaming systems
+Fully modular cables reduce cable clutter
+12V-2x6 connector for newer graphics cards
$139.99-22%List: $179.99
as of 11/04/2026 00:18 PST - Details
RosewillSpec score 7.9

650 Watts, Gold, ATX, Non-modular

+650W output for mid-range builds
+ATX 3.1 compatible for current PC standards
+Includes a 16-pin PCIe 5.1 GPU connector
−Non-modular design means all cables are fixed
$47.97-20%List: $59.99
as of 11/04/2026 07:06 PST - Details
ThermaltakeSpec score 8.0

850 Watts, Gold, ATX, ATX 3.1

+850W output for high-end graphics cards
+ATX 3.1 compatible design
+Native PCIe 5.1 12V-2x6 connector
$104.82-19%List: $129.99
as of 11/04/2026 08:06 PST - Details
RosewillSpec score 7.5

650 Watts, Bronze, ATX, Semi-modular

−Bronze: 85 of the 87 here have a higher efficiency
$49.96-17%List: $59.99
as of 11/04/2026 07:06 PST - Details
be quiet!Spec score 8.2

1000 Watts, Platinum, ATX, ATX 3.1

+1000W output for high-power graphics cards and builds
+ATX 3.1 standard with PCIe 5.1 support
+Zero RPM low-noise fan mode
$169.90-15%List: $199.90
as of 11/04/2026 13:06 PST - Details
Cooler MasterSpec score 8.8

750 Watts, Gold, ATX, Fully modular

+750W output suits mid-range builds
+Fully modular cabling reduces cable clutter
+16-pin GPU connector support
$115.99-11%List: $129.99
as of 11/04/2026 13:10 PST - Details
ThermaltakeSpec score 8.9

1000 Watts, Gold, ATX, Fully modular

+1000W output for demanding high-end systems
+Fully modular cable design
+ATX 3.1 compatible design
$109.99-27%List: $149.99
as of 11/04/2026 08:06 PST - Details
CorsairSpec score 8.9

1000 Watts, Gold, ATX, Fully modular

+1000 watt output for high-power systems
+ATX 3.1 standard supports newer GPUs
+16-pin GPU connector for modern graphics cards
$151.99-24%List: $199.99
as of 11/04/2026 13:10 PST - Details
MSISpec score 8.8

850 Watts, Gold, ATX, Fully modular

+850W output suits high-end graphics card builds
+Fully modular cabling reduces loose cables
+16-pin GPU connector included
$109.99-21%List: $139.99
as of 11/04/2026 00:18 PST - Details
CorsairSpec score 9.1

1000 Watts, Platinum, ATX, Fully modular

+1000 watt output for high-power systems
+ATX 3.1 standard supports newer GPUs
+Fully modular cables for a tidy build
$231.99-20%List: $289.99
as of 11/04/2026 13:10 PST - Details
CorsairSpec score 8.9

1000 Watts, Gold, ATX, Fully modular

+1000W output for high-wattage builds
+Fully modular cable design
+Supports 16-pin GPU connector
−Large ATX form factor needs full-size case space
$169.99-19%List: $209.99
as of 11/04/2026 13:10 PST - Details
CorsairSpec score 8.8

850 Watts, Gold, ATX, Fully modular

+850W output for higher-power builds
+Fully modular cable design
+Supports 16-pin GPU connector
−Large ATX form factor needs full-size case space
$139.99-18%List: $169.99
as of 11/04/2026 13:10 PST - Details
MSISpec score 9.1

1000 Watts, Platinum, ATX, Fully modular

+1000W output for high-wattage graphics cards and systems
+Fully modular cabling reduces loose cables
+16-pin GPU connector included
$159.99-16%List: $189.99
as of 11/04/2026 00:18 PST - Details
RosewillSpec score 8.9

1000 Watts, Gold, ATX, Fully modular

+1000W output for high-end multi-GPU builds
+Fully modular cable design
+Includes 16-pin PCIe 5.1 12V-2x6 connector
$94.99-14%List: $109.99
as of 11/04/2026 07:06 PST - Details
ThermaltakeSpec score 8.0

850 Watts, Gold, ATX, ATX 3.1

−Fully modular not listed: 70 of the 88 here list one
$86.49-14%List: $99.99
as of 11/04/2026 08:06 PST - Details
ASUSSpec score 8.9

1000 Watts, Gold, ATX, Fully modular

+1000W output for high-power graphics cards and builds
+Fully modular cables reduce cable clutter
+ATX 3.1 standard with 16-pin GPU connector
$183.99-12%List: $209.99
as of 11/04/2026 12:10 PST - Details
MSISpec score 8.9

1000 Watts, Gold, ATX, Fully modular

+Fully modular design reduces loose cables inside the case
+1000W output for high-end gaming systems
+ATX 3.1 standard with native PCIe 5.1 readiness
$134.99-10%List: $149.99
as of 11/04/2026 00:18 PST - Details
ASUSSpec score 8.8

750 Watts, Gold, ATX, Fully modular

+750W output for mid to high-end builds
+Fully modular cabling
+Includes a 12V-2x6 GPU cable
$107.99-10%List: $119.99
as of 11/04/2026 12:09 PST - Details
ASUSSpec score 8.8

850 Watts, Gold, ATX, Fully modular

+850W output for high-performance builds
+Fully modular cabling
+Includes a 12V-2x6 GPU cable
$132.99-5%List: $139.99
as of 11/04/2026 12:09 PST - Details
MSISpec score 9.4

1300 Watts, Titanium, ATX, Fully modular

+1300W output for very high-power systems
+Fully modular cables reduce cable clutter
+Dual 12V-2x6 cables for high-power GPUs
−Higher wattage than most desktop builds need
$399.97
as of 11/04/2026 00:18 PST - Details
be quiet!Spec score 9.3

1500 Watts, Platinum, ATX, Fully modular

+1500W output for high-power systems
+Fully modular cabling reduces cable clutter
+Native 12V-2x6 cable for 16-pin GPUs
−Large 1500W capacity may exceed needs of typical builds
$279.90
as of 11/04/2026 13:06 PST - Details
MSISpec score 8.8

850 Watts, Gold, ATX, Fully modular

+850W output for high-end graphics card builds
+Fully modular cables reduce cable clutter
+Native 12V-2x6 16-pin GPU connector
−Compact form factor is not a standard ATX size
$134.99
as of 11/04/2026 00:18 PST - Details
ThermaltakeSpec score 8.0

850 Watts, Gold, ATX, ATX 3.1

+850W output for high-end graphics cards
+ATX 3.1 compatible design
+16-pin GPU connector included
−Not fully modular
$129.99
as of 11/04/2026 08:06 PST - Details
ASUSSpec score 9.1

1000 Watts, Platinum, ATX, Fully modular

+1000W output for high-wattage builds
+Fully modular cabling
+Includes a 12V-2x6 GPU cable
$259.99
as of 11/04/2026 12:10 PST - Details
SeasonicSpec score 9.1

1000 Watts, Platinum, ATX, Fully modular

+1000W output for high-end multi-GPU builds
+Fully modular cable design
+ATX 3.1 compatible
$269.99
as of 11/04/2026 07:07 PST - Details
Super FlowerSpec score 9.1

1000 Watts, Platinum, ATX, Fully modular

+1000W output for high-power graphics cards
+ATX 3.1 compliant with PCIe 5.1 support
+Native 16-pin GPU connector
$144.99
as of 11/04/2026 07:10 PST - Details

Compare specs

power supplyWattsEfficiencyFormModularATX versionSpec scorePrice
850GoldATXFully modularATX 3.18.8$114.93
as of 11/04/2026 13:10 PST - Details
1000GoldATXFully modularATX 3.18.9$104.99
as of 11/04/2026 13:10 PST - Details
1000PlatinumATXFully modularATX 3.19.1$139.99
as of 11/04/2026 00:18 PST - Details
650GoldATXNon-modularATX 3.17.9$47.97
as of 11/04/2026 07:06 PST - Details
850GoldATXATX 3.18.0$104.82
as of 11/04/2026 08:06 PST - Details
650BronzeATXSemi-modularATX 3.17.5$49.96
as of 11/04/2026 07:06 PST - Details
1000PlatinumATXATX 3.18.2$169.90
as of 11/04/2026 13:06 PST - Details
750GoldATXFully modularATX 3.18.8$115.99
as of 11/04/2026 13:10 PST - Details
1000GoldATXFully modularATX 3.18.9$109.99
as of 11/04/2026 08:06 PST - Details
1000GoldATXFully modularATX 3.18.9$151.99
as of 11/04/2026 13:10 PST - Details

Before you buy

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.