Power Supplies under $100

2 power supplies under $100 from Rosewill, Thermaltake, MSI and more. Prices run $50 to $74.

RosewillSpec score 7.8

650 Watts, Bronze, ATX, Semi-modular

−Bronze: 19 of the 26 here have a higher efficiency

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

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

MSISpec score 7.8

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

Compare specs

power supply	Watts	Efficiency	Form	Modular	ATX version	Spec score	Price
	650	Bronze	ATX	Semi-modular	ATX 3.1	7.8	$49.96 as of 11/04/2026 07:06 PST - Details
	650	Bronze	ATX	Semi-modular		7.8	$74.99 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.