ATX Power Supplies

5 ATX power supplies from MSI, Corsair, ASUS and more. Prices run $40 to $74.

RosewillSpec score 7.5

650 Watts, Bronze, ATX, Semi-modular

−Bronze: 86 of the 91 here have a higher efficiency

$49.96-17%List: ~~$59.99~~

as of 11/04/2026 07:06 PST - Details

MSISpec score 7.5

650 Watts, Bronze, ATX, Semi-modular

+650W output suits mid-range gaming builds

+Semi-modular design for partially detachable cables

+Compact ATX design fits smaller cases

$74.99

as of 11/04/2026 00:18 PST - Details

CorsairSpec score 7.5

650 Watts, Bronze, ATX, Semi-modular

+Provides 650 watts in standard ATX form factor

+Semi-modular cabling reduces unused cables

+Designed for low-noise operation

No current price. Check it at the store.

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

EvounicSpec score 7.5

650 Watts, Bronze, ATX, Non-modular

+650W output in a standard ATX form factor

+80 PLUS Bronze efficiency certification

+Non-modular design with fixed cables

−Non-modular design means cables cannot be removed

$39.96

as of 11/04/2026 14:09 PST - Details

Compare specs

Watts	Efficiency	Form	Modular	ATX version	Spec score	Price
650	Bronze	ATX	Semi-modular	ATX 3.1	7.5	$49.96 as of 11/04/2026 07:06 PST - Details
650	Bronze	ATX	Semi-modular		7.5	$74.99 as of 11/04/2026 00:18 PST - Details
650	Bronze	ATX	Semi-modular		7.5	No current price
650	Bronze	ATX		ATX 3.1	7.5	$44.99 as of 11/04/2026 12:09 PST - Details
650	Bronze	ATX	Non-modular		7.5	$39.96 as of 11/04/2026 14:09 PST - Details

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