be quiet! Dark Power Pro 11 550W

A 550W unit with 80+ Platinum efficiency certification and semi cabling. 550W covers mainstream builds with a modest GPU. It uses the ATX form factor — confirm your case lists ATX support. Power supplies are the wrong place to cut corners — efficiency certification correlates with build quality and warranty length.

Expect to pay around $157.16, which lands it among high-end options. Use the PlanMyPC system builder to verify it works alongside your other components and to keep a running tally of the cost. Support and warranty service run through be quiet!, 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.