ATX 3.1 Power Supplies

3 ATX 3.1 power supplies from Corsair, MSI, ASUS and more. Prices run $48 to $79.

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

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

Compare specs

Watts	Efficiency	Form	Modular	ATX version	Spec score	Price
650	Gold	ATX	Non-modular	ATX 3.1	7.9	$47.97 as of 11/04/2026 07:06 PST - Details
850	Gold	ATX	Non-modular	ATX 3.1	8.0	$79.99 as of 11/04/2026 00:48 PST - Details
650	Gold	ATX	Non-modular	ATX 3.1	7.9	$59.99 as of 11/04/2026 00:18 PST - Details

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