Topower TOP-400W80 400W

This is a 400W unit with 80+ efficiency certification and non-modular cabling. 400W covers mainstream builds with a modest GPU. It uses the ATX form factor — confirm your case lists ATX support. A dependable power supply protects everything downstream, and efficiency tiers are a decent proxy for overall build quality.

Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing. Warranty coverage follows Topower's standard policy — confirm regional terms on the listing. Every published spec is tabulated below, and compatibility against your current part list is checked automatically. Not sold on this particular power supply? Browse the category listing to line it up against similarly priced alternatives.