Power Supplies under $100

2 power supplies under $100 from Rosewill, Thermaltake, MSI and more. Prices run $69 to $99.

PhanteksSpec score 9.5

1000 Watts, Platinum, ATX, Fully modular

+1000W output for high-power gaming systems

+Fully modular cable-less design

+16-pin GPU connector for newer graphics cards

$69.08-65%List: ~~$199.99~~

as of 11/04/2026 00:38 PST - Details

be quiet!Spec score 9.3

750 Watts, Platinum, ATX, Fully modular

+Platinum: the highest efficiency of the 26 here

+Fully modular: only 13 of 32 here have one

$99.90-38%List: ~~$159.90~~

as of 11/04/2026 13:06 PST - Details

Compare specs

power supply	Watts	Efficiency	Form	Modular	ATX version	Spec score	Price
	1000	Platinum	ATX	Fully modular	ATX 3.0	9.5	$69.08 as of 11/04/2026 00:38 PST - Details
	750	Platinum	ATX	Fully modular	ATX 3.1	9.3	$99.90 as of 11/04/2026 13:06 PST - Details

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