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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)

FSPSpec score 9.2

1000 Watts, Titanium, ATX, Fully modular

+1000W output for high-power gaming and workstation builds
+Fully modular cables reduce clutter inside the case
+Native 16-pin GPU connector for current graphics cards
$259.99
as of 11/04/2026 14:11 PST - Details
ASUSSpec score 9.1

1000 Watts, Platinum, ATX, Fully modular

+1000W output for high-wattage builds
+Fully modular cabling
+ATX 3.1 compatible
$249.99
as of 11/04/2026 12:10 PST - Details
ASUSSpec score 9.1

1000 Watts, Platinum, ATX, Fully modular

+1000W output for high-power graphics cards and builds
+Fully modular cables reduce cable clutter
+ATX 3.1 standard with PCIe 5.1 support
$429.25
as of 11/04/2026 12:10 PST - Details
Cooler MasterSpec score 9.1

1000 Watts, Platinum, ATX, Fully modular

+1000W output for high-power builds
+Fully modular cabling reduces cable clutter
+16-pin GPU connector support
$149.99
as of 11/04/2026 13:09 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
+16-pin GPU connector for modern graphics cards
$339.00
as of 11/04/2026 13:10 PST - Details
CorsairSpec score 9.1

1000 Watts, Platinum, SFX, Fully modular

+1000W output for high-wattage builds
+Fully modular cable design
+Compact SFX form factor for small cases
$229.90
as of 11/04/2026 13:10 PST - Details
EnermaxSpec score 9.1

1000 Watts, Platinum, ATX, Fully modular

+1000 watts for high-power systems
+Fully modular cabling for cleaner builds
+Includes 16-pin GPU connector for modern graphics cards
$139.99
as of 11/04/2026 14:08 PST - Details
PhanteksSpec score 9.1

1000 Watts, Platinum, ATX, Fully modular

+1000W output for high-power gaming systems
+Fully modular individual cables
+16-pin GPU connector for newer graphics cards
$149.99
as of 11/04/2026 00:38 PST - Details
RaijintekSpec score 9.1

1000 Watts, Platinum, ATX, Fully modular

+1000W output for high-power builds
+Fully modular cabling reduces cable clutter
+Native 16-pin connector for modern graphics cards
$139.90
as of 11/04/2026 00:48 PST - Details
SilverStoneSpec score 9.1

1000 Watts, Platinum, ATX, Fully modular

+1000W output for demanding systems
+Fully modular cable design
+Includes 16-pin GPU connector
$221.40
as of 11/04/2026 07:08 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
$223.70
as of 11/04/2026 13:10 PST - Details
GIGABYTESpec score 8.9

1000 Watts, Gold, ATX, Fully modular

+1000W 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
$169.99
as of 11/03/2026 23:11 PST - Details
GIGABYTESpec score 8.9

1000 Watts, Gold, ATX, Fully modular

+1000W 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
$149.99
as of 11/03/2026 23:11 PST - Details
Lian LiSpec score 8.9

1000 Watts, Gold, ATX, Fully modular

+1000W 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
$154.99
as of 11/03/2026 23:58 PST - Details
EnermaxSpec score 8.8

850 Watts, Gold, ATX, Fully modular

+Fully modular cabling for cleaner builds
+Includes 16-pin GPU connector for modern graphics cards
+ATX 3.1 standard for current PC builds
$95.49
as of 11/04/2026 14:08 PST - Details
FSPSpec score 8.8

850 Watts, Gold, ATX, Fully modular

+850W output for high-power gaming and workstation builds
+Fully modular cables reduce clutter inside the case
+Native 16-pin GPU connector for current graphics cards
$129.99
as of 11/04/2026 14:11 PST - Details
PhanteksSpec score 8.8

850 Watts, Gold, ATX, Fully modular

+850W output for high-end graphics card builds
+Fully modular individual cables
+Fanless design for silent operation
$119.99
as of 11/04/2026 00:38 PST - Details
RosewillSpec score 8.8

850 Watts, Gold, ATX, Fully modular

+850W output for high-power gaming and workstation builds
+Fully modular cable design
+Includes 16-pin PCIe 5.0 12V-2x6 connector
$98.90
as of 11/04/2026 07:06 PST - Details
SeasonicSpec score 8.8

750 Watts, Gold, ATX, Fully modular

+750W output for mid-to-high-power builds
+Fully modular cable design
+ATX 3.1 compatible
$139.99
as of 11/04/2026 07:07 PST - Details
ThermaltakeSpec score 8.8

850 Watts, Gold, ATX, Fully modular

+850W output for high-end graphics cards
+Fully modular cable design
+ATX 3.1 compatible design
$127.29
as of 11/04/2026 08:06 PST - Details
be quiet!Spec score 8.1

1000 Watts, Gold, ATX, ATX 3.1

+1000W output for high-power graphics cards and builds
+ATX 3.1 standard with PCIe 5.1 GPU support
+16-pin GPU connector included
$109.90
as of 11/04/2026 13:06 PST - Details
MSISpec score 8.1

1000 Watts, Gold, ATX, ATX 3.1

+1000W output for high-wattage graphics cards and systems
+ATX 3.1 standard for current PC builds
+PCIe 5.1 GPU support listed
$134.99
as of 11/04/2026 00:18 PST - Details
Lian LiSpec score 9.1

1000 Watts, Platinum, ATX, Fully modular

+1000W 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
No current price. Check it at the store.
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
No price recorded yet.
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
No price recorded yet.
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
No price recorded yet.
ASUSSpec score 8.2

1000 Watts, Platinum, ATX, ATX 3.1

+1000W output for high-wattage builds
+Includes a 12V-2x6 GPU cable
+ATX 3.1 compatible
No price recorded yet.
Corsair

1200 Watts, ATX, ATX 3.1

+Provides 1200 watts in standard ATX form factor
+Complies with ATX 3.1 standard
+Ready for PCIe 5.1 graphics cards
No price recorded yet.

Compare specs

power supplyWattsEfficiencyFormModularATX versionSpec scorePrice
1000TitaniumATXFully modularATX 3.19.2$259.99
as of 11/04/2026 14:11 PST - Details
1000PlatinumATXFully modularATX 3.19.1$249.99
as of 11/04/2026 12:10 PST - Details
1000PlatinumATXFully modularATX 3.19.1$429.25
as of 11/04/2026 12:10 PST - Details
1000PlatinumATXFully modularATX 3.19.1$149.99
as of 11/04/2026 13:09 PST - Details
1000PlatinumATXFully modularATX 3.19.1$339.00
as of 11/04/2026 13:10 PST - Details
1000PlatinumSFXFully modularATX 3.19.1$229.90
as of 11/04/2026 13:10 PST - Details
1000PlatinumATXFully modularATX 3.19.1$139.99
as of 11/04/2026 14:08 PST - Details
1000PlatinumATXFully modularATX 3.19.1$149.99
as of 11/04/2026 00:38 PST - Details
1000PlatinumATXFully modularATX 3.19.1$139.90
as of 11/04/2026 00:48 PST - Details
1000PlatinumATXFully modularATX 3.19.1$221.40
as of 11/04/2026 07:08 PST - Details

Before you buy

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