Thermaltake Smart W3 500W

A 500W unit with 80+ efficiency certification and non-modular cabling. 500W covers mainstream builds with a modest GPU. It uses the ATX form factor — confirm your case lists ATX support. Power supplies are the wrong place to cut corners — efficiency certification correlates with build quality and warranty length.

Its $39.99 price tag places it squarely in budget territory. PlanMyPC's builder flags compatibility problems automatically and tracks the latest power supply deals from multiple stores. Thermaltake backs the product through its standard warranty channels; check the listing for region-specific terms. The full specification sheet below breaks out every listed detail, and the compatibility checker flags conflicts with parts already in your build.