Power Supplies under $150

2 power supplies under $150 from MSI, Thermaltake, be quiet! and more. Prices run $91 to $126.

be quiet!Spec score 7.6

450 Watts, Bronze, SFX

+SFX form factor fits small form factor cases

+Rated at 450 watts for compact builds

−Lower 450 watt output limits high-power components

$126.00-21%Was: ~~$160.00~~

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

SilverStoneSpec score 7.6

450 Watts, Bronze, SFX

+Compact SFX form factor suits small form factor builds

+450W output for light to mid-range compact systems

+80 Plus Bronze rated for efficiency

−SFX size may not fit standard ATX cases without an adapter

$90.84

as of 11/04/2026 07:08 PST - Details

Compare specs

power supply	Watts	Efficiency	Form	Modular	ATX version	Spec score	Price
	450	Bronze	SFX			7.6	$126.00 as of 11/04/2026 13:06 PST - Details
	450	Bronze	SFX			7.6	$90.84 as of 11/04/2026 07:08 PST - Details

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