Topower ZU-550W 550W

This is a 550W unit with 80+ efficiency certification and non-modular cabling. It uses the ATX form factor — confirm your case lists ATX support. 550W covers mainstream builds with a modest GPU. 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. Support and warranty service run through Topower, with terms that vary by region. 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.