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ATX 3.1 Power Supplies

All Power Supplies

30 ATX 3.1 power supplies from Corsair, MSI, ASUS and more. Most cost $140 to $279, and half cost less than $192.

Top brands: ASUS (7)Corsair (4)

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
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
Super FlowerSpec score 9.1

1000 Watts, Platinum, SFX, Fully modular

+1000W output for high-power graphics cards
+ATX 3.1 compliant with PCIe 5.1 support
+Native 16-pin GPU connector
$149.99-6%Was: $159.99
as of 11/04/2026 07:10 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
ASUSSpec score 8.9

750 Watts, Platinum, SFX, Fully modular

+750W output in a compact SFX form factor
+Fully modular cabling
+ATX 3.1 with PCIe 5.1 support
−SFX-L size fits only compatible small-form-factor cases
$143.99
as of 11/04/2026 12:10 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
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
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
ASUSSpec score 9.1

1000 Watts, Platinum, SFX, Fully modular

+1000W output in a compact SFX form factor
+Fully modular cabling
+ATX 3.1 with PCIe 5.1 support
−SFX-L size fits only compatible small-form-factor cases
$279.99
as of 11/04/2026 12:10 PST - Details
Lian LiSpec score 9.1

1000 Watts, Platinum, SFX, Fully modular

+1000W output for high-end graphics cards and demanding builds
+Fully modular cables for a cleaner build
+SFX form factor for small form factor builds
−SFX size fits only small form factor cases
$184.99
as of 11/03/2026 23:59 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
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
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.
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
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 11/03/2026 22:50 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
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.

Compare specs

power supplyWattsEfficiencyFormModularATX versionSpec scorePrice
1000PlatinumATXFully modularATX 3.19.1$139.99
as of 11/04/2026 00:18 PST - Details
1000PlatinumATXATX 3.18.2$169.90
as of 11/04/2026 13:06 PST - Details
1000PlatinumSFXFully modularATX 3.19.1$149.99
as of 11/04/2026 07:10 PST - Details
1500PlatinumATXFully modularATX 3.19.3$279.90
as of 11/04/2026 13:06 PST - Details
750PlatinumSFXFully modularATX 3.18.9$143.99
as of 11/04/2026 12:10 PST - Details
750PlatinumATXFully modularATX 3.18.9$199.00
as of 11/04/2026 00:16 PST - Details
1000PlatinumATXFully modularATX 3.19.1$231.99
as of 11/04/2026 13:10 PST - Details
1000PlatinumATXFully modularATX 3.19.1$159.99
as of 11/04/2026 00:18 PST - Details
1000PlatinumSFXFully modularATX 3.19.1$279.99
as of 11/04/2026 12:10 PST - Details
1000PlatinumSFXFully modularATX 3.19.1$184.99
as of 11/03/2026 23:59 PST - Details

Before you buy

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