Rosewill Tachyon 750W

This is a 750W unit with 80+ Platinum efficiency certification and semi cabling. 750W covers a 220–300W GPU and a midrange CPU comfortably. 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 $49.99 price tag places it squarely in budget territory. Use the PlanMyPC system builder to verify it works alongside your other components and to keep a running tally of the cost. Rosewill backs the product through its standard warranty channels; check the listing for region-specific terms.