Power Supplies under $50

3 power supplies under $50 from Rosewill and Esgaming. Prices run $43 to $49.

MSISpec score 8.7

650 Watts, Gold, ATX, Non-modular

+650W output in a standard ATX form factor

+80 PLUS Gold efficiency certification

+Low noise operation

−Non-modular design means cables cannot be removed

$42.74-39%List: ~~$69.99~~

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

RosewillSpec score 8.7

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

EsgamingSpec score 9.3

500 Watts, Gold, Fully modular

+Delivers 500 watts in an ITX, 1U and Flex ATX form factor

+Fully modular cables reduce clutter in small cases

+Supports 90-264V input range with APFC

$49.98

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

Compare specs

Watts	Efficiency	Form	Modular	Spec score	Price
650	Gold	ATX	Non-modular	8.7	$42.74 as of 11/04/2026 00:18 PST - Details
650	Gold	ATX	Non-modular	8.7	$47.97 as of 11/04/2026 07:06 PST - Details
500	Gold		Fully modular	9.3	$49.98 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.