Power Supplies under $50

3 power supplies under $50 from Rosewill and Esgaming. Prices run $40 to $49.

RosewillSpec score 8.1

650 Watts, Bronze, ATX, Semi-modular

+650 watts: the most watts of the 10 here

−Bronze: 3 of the 6 here have a higher efficiency

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

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

ASRockSpec score 8.1

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 8.1

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	Spec score	Price
650	Bronze	ATX	Semi-modular	8.1	$49.96 as of 11/04/2026 07:06 PST - Details
650	Bronze	ATX		8.1	$44.99 as of 11/04/2026 12:09 PST - Details
650	Bronze	ATX	Non-modular	8.1	$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.