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ATX 3.1 Power Supplies

All Power Supplies

88 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 (15)MSI (10)ASUS (10)

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
Cooler MasterSpec score 8.9

1000 Watts, Gold, ATX, Fully modular

+1000W output for high-power builds
+Fully modular cabling reduces cable clutter
+16-pin GPU connector support
$134.43
as of 11/04/2026 13:09 PST - Details
MontechSpec score 8.9

1050 Watts, Gold, ATX, Fully modular

+1050W output for high-end graphics cards and demanding builds
+Fully modular cables for a cleaner build
+Includes 16-pin GPU connector for newer graphics cards
$109.90
as of 11/04/2026 00:16 PST - Details
MontechSpec score 8.9

750 Watts, Platinum, ATX, Fully modular

+750W output for mid-range builds
+Fully modular cables for a cleaner build
+Includes 16-pin GPU connector for newer graphics cards
$199.00
as of 11/04/2026 00:16 PST - Details
NZXTSpec score 8.9

1000 Watts, Gold, ATX, Fully modular

+1000W output for high-power gaming systems
+Fully modular cables reduce cable clutter
+16-pin GPU connector for newer graphics cards
$169.99
as of 11/04/2026 00:29 PST - Details
Super FlowerSpec score 8.9

1000 Watts, Gold, ATX, Fully modular

+1000W output for high-power graphics cards
+ATX 3.1 compliant with PCIe 5.1 support
+Native 16-pin GPU connector
$149.99
as of 11/04/2026 07:10 PST - Details
Super FlowerSpec score 8.9

1000 Watts, Gold, ATX, Fully modular

+1000W output for high-power graphics cards
+ATX 3.1 compliant with PCIe 5.1 support
+Native 16-pin GPU connector
$139.99
as of 11/04/2026 07:10 PST - Details
Cooler MasterSpec score 8.8

750 Watts, Gold, SFX, Fully modular

+Compact SFX form factor for small form factor builds
+750W output for mid to high-power builds
+Fully modular cabling reduces cable clutter
$155.07
as of 11/04/2026 13:10 PST - Details
SeasonicSpec score 8.8

850 Watts, Gold, ATX, Fully modular

+850W output for high-power gaming and workstation builds
+Fully modular cable design
+ATX 3.1 compatible
$129.99
as of 11/04/2026 07:07 PST - Details
be quiet!Spec score 8.4

1000 Watts, Titanium, ATX, ATX 3.1

+1000W output for high-power graphics cards and builds
+ATX 3.1 standard with PCIe 5.0 support
+Frameless Silent Wings fan
$219.90
as of 11/04/2026 13:06 PST - Details
Lian LiSpec score 8.2

1000 Watts, Platinum, ATX, ATX 3.1

+1000W output for high-end graphics cards and demanding builds
+Compact ATX form factor
+Includes 16-pin GPU connector for newer graphics cards
$149.99
as of 11/03/2026 23:59 PST - Details
ThermaltakeSpec score 8.0

850 Watts, Gold, ATX, ATX 3.1

+850W output for high-end systems
+ATX 3.1 compliant with PCIe 5.1 support
+Native 16-pin GPU connector
$129.99
as of 11/04/2026 08:06 PST - Details
Cooler Master

Gold, ATX, ATX 3.1

+Provides 850 watts in standard ATX form factor
+Includes a 16-pin GPU power connector
+Complies with ATX 3.1 standard
No current price. Check it at the store.
CorsairSpec score 8.9

750 Watts, Platinum, ATX, Fully modular

+Platinum: only 4 of 87 here have a higher efficiency
−750 watts: 73 of the 87 here have more watts
No current price. Check it at the store.
XPGSpec score 8.8

850 Watts, Gold, Fully modular, ATX 3.1

+850W output for high-end graphics cards
+Fully modular cable design
+ATX 3.1 compatible design
$89.99-25%List: $119.99
as of 11/04/2026 09:06 PST - Details
MSISpec score 8.9

1000 Watts, Gold, ATX, Fully modular

+1000W output for high-wattage graphics cards and systems
+Fully modular cabling reduces loose cables
+16-pin GPU connector included
$109.99-35%List: $169.99
as of 11/04/2026 00:18 PST - Details
PowerLotSpec score 9.4

1300 Watts, Titanium, ATX, Fully modular

+1300W output for high-power gaming and workstation builds
+Fully modular cabling reduces cable clutter
+Native 12V-2x6 connector for modern graphics cards
−Higher wattage than most standard builds need
$299.99
as of 11/04/2026 00:43 PST - Details
RaijintekSpec score 8.0

850 Watts, Gold, ATX, Non-modular

+850W output for mid-to-high power builds
+ATX 3.1 standard with PCIe 5.1 support
+16-pin connector for modern graphics cards
−Non-modular cabling leaves all cables permanently attached
$79.99
as of 11/04/2026 00:48 PST - Details
MSISpec score 7.9

650 Watts, Gold, ATX, Non-modular

+650W output suits mid-range builds
+ATX 3.1 standard for current PC builds
+Active PFC listed
−Non-modular cabling leaves all cables permanently attached
$59.99
as of 11/04/2026 00:18 PST - Details
ASRockSpec score 7.5

650 Watts, Bronze, ATX, ATX 3.1

+650W output suits mid-range builds
+80 Plus Bronze certified efficiency
+ATX 3.1 ready for newer hardware
−Not fully modular, so cable management is more limited
$44.99
as of 11/04/2026 12:09 PST - Details
CorsairSpec score 8.8

750 Watts, Gold, ATX, Fully modular

+750W output for mid-range systems
+Fully modular cable design
+Supports 16-pin GPU connector
−Large ATX form factor needs full-size case space
No current price. Check it at the store.
CorsairSpec score 8.8

750 Watts, Gold, ATX, Fully modular

+750W output for mid-range systems
+Fully modular cable design
+Supports 16-pin GPU connector
−Large ATX form factor needs full-size case space
No price recorded yet.
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
No price recorded yet.
FSPSpec score 8.0

650 Watts, Platinum, ATX, ATX 3.1

+Flex ATX form factor suits small form factor builds
+650W output suits mid-range builds
+Supports the ATX 3.1 standard
−Flex ATX size limits compatibility with standard ATX cases
No price recorded yet.
Cooler MasterSpec score 9.2

1300 Watts, Platinum, ATX, Fully modular

+1300W output for high-power builds
+Fully modular cabling reduces cable clutter
+16-pin GPU connector support
$249.99
as of 11/04/2026 13:10 PST - Details

Compare specs

power supplyWattsEfficiencyFormModularATX versionSpec scorePrice
850GoldATXATX 3.18.0$129.99
as of 11/04/2026 08:06 PST - Details
1000PlatinumATXFully modularATX 3.19.1$259.99
as of 11/04/2026 12:10 PST - Details
1000PlatinumATXFully modularATX 3.19.1$269.99
as of 11/04/2026 07:07 PST - Details
1000PlatinumATXFully modularATX 3.19.1$144.99
as of 11/04/2026 07:10 PST - Details
1000GoldATXFully modularATX 3.18.9$134.43
as of 11/04/2026 13:09 PST - Details
1050GoldATXFully modularATX 3.18.9$109.90
as of 11/04/2026 00:16 PST - Details
750PlatinumATXFully modularATX 3.18.9$199.00
as of 11/04/2026 00:16 PST - Details
1000GoldATXFully modularATX 3.18.9$169.99
as of 11/04/2026 00:29 PST - Details
1000GoldATXFully modularATX 3.18.9$149.99
as of 11/04/2026 07:10 PST - Details
1000GoldATXFully modularATX 3.18.9$139.99
as of 11/04/2026 07:10 PST - Details

Before you buy

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