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ATX 3.1 Power Supplies

All Power Supplies

3 ATX 3.1 power supplies from Corsair, MSI, ASUS and more. Prices run $250 to $399.

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Watts: 1300  ×ATX version: ATX 3.1  ×Clear all
BrandCooler Master1MSI1PowerLot1
Watts100046850207509650513003120021050115001
EfficiencyTitanium2Platinum1
FormATX3
ModularFully modular3
ATX versionATX 3.13
12V-2x6 GPU power12V-2x6 GPU power3
PriceUnder $2501Under $3002Under $4001$100 & above3$150 & above3$250 & above2
Clear allShow 3 Power Supplies
Watts: 1300  ×ATX version: ATX 3.1  ×3 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
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
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
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

Compare specs

power supplyWattsEfficiencyFormModularATX versionSpec scorePrice
1300TitaniumATXFully modularATX 3.19.4$399.97
as of 11/04/2026 00:18 PST - Details
1300PlatinumATXFully modularATX 3.19.2$249.99
as of 11/04/2026 13:10 PST - Details
1300TitaniumATXFully modularATX 3.19.4$299.99
as of 11/04/2026 00:43 PST - Details

Before you buy

Other ATX version options

PC Cases264CPU Coolers393Processors247Data Center GPUs82Graphics Cards371Motherboards640Memory374Storage Drives577Binoculars228Network Cables1,382Cameras2,556Chromebooks196

Popular filters

Fully Modular Power Supplies97ATX Power Supplies95Power Supplies with 12V-2x6 GPU Power8580 Plus Gold Power Supplies76Power Supplies under $15068Power Supplies under $200641000W Power Supplies61850W Power Supplies47

Power Supplies by use

Power Supply for a Gaming PC121

Related product types

ATX 3.0 Power Supplies9

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