Silverstone SX300-B 300W

A 300W unit with 80+ Bronze efficiency certification and non-modular cabling. 300W covers mainstream builds with a modest GPU. It uses the SFX form factor — confirm your case lists SFX 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 Silverstone's standard policy — confirm regional terms on the listing. Scroll down for the complete spec table; the builder's compatibility checker will warn you about any conflicts with components you have already picked.