Silverstone NJ450-SXL 450W

This is a 450W unit with 80+ Platinum efficiency certification and full cabling. 450W covers mainstream builds with a modest GPU. It uses the SFX form factor — confirm your case lists SFX support. Power supplies are the wrong place to cut corners — efficiency certification correlates with build quality and warranty length.

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 Silverstone, with terms that vary by region. Scroll down for the complete spec table; the builder's compatibility checker will warn you about any conflicts with components you have already picked.