SeaSonic FOCUS Gold 450W

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

Expect to pay around $421.00, which lands it among premium options. Use the PlanMyPC system builder to verify it works alongside your other components and to keep a running tally of the cost. Seasonic backs the product through its standard warranty channels; check the listing for region-specific terms. Scroll down for the complete spec table; the builder's compatibility checker will warn you about any conflicts with components you have already picked.