Power Supplies under $150

4 power supplies under $150 from MSI, Thermaltake, be quiet! and more. Prices run $60 to $79.

ThermaltakeSpec score 8.1

600 Watts, Gold, ATX, Non-modular

+600W continuous output in a standard ATX form factor

+Supports SLI and Crossfire configurations

+Built to ATX 12V V2.4 and EPS V2.92 standards

−Non-modular design means all cables are permanently attached

$59.99-14%List: ~~$69.99~~

as of 11/04/2026 08:06 PST - Details

MSISpec score 7.7

650 Watts, Bronze, Non-modular

+650W output suits mid-range gaming builds

+Compact design fits smaller cases

+Low-noise fan for quieter operation

−Non-modular design means all cables stay attached

$61.99-5%List: ~~$64.99~~

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

RaijintekSpec score 8.3

850 Watts, Gold, ATX, Non-modular

+850W output for mid-to-high power builds

+ATX 3.1 standard with PCIe 5.1 support

+16-pin connector for modern graphics cards

−Non-modular cabling leaves all cables permanently attached

$79.99

as of 11/04/2026 00:48 PST - Details

MSISpec score 8.2

650 Watts, Gold, ATX, Non-modular

+650W output suits mid-range builds

+ATX 3.1 standard for current PC builds

+Active PFC listed

−Non-modular cabling leaves all cables permanently attached

$59.99

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

Compare specs

Watts	Efficiency	Form	Modular	ATX version	Spec score	Price
600	Gold	ATX	Non-modular		8.1	$59.99 as of 11/04/2026 08:06 PST - Details
650	Bronze		Non-modular		7.7	$61.99 as of 11/04/2026 00:18 PST - Details
850	Gold	ATX	Non-modular	ATX 3.1	8.3	$79.99 as of 11/04/2026 00:48 PST - Details
650	Gold	ATX	Non-modular	ATX 3.1	8.2	$59.99 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.