Lian Li PE 550W

This is a 550W unit with 80+ Gold efficiency certification and full cabling. It uses the SFX form factor — confirm your case lists SFX support. 550W 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.

At $49.99 it sits in the budget power supply bracket. Use the PlanMyPC system builder to verify it works alongside your other components and to keep a running tally of the cost. Lian backs the product through its standard warranty channels; check the listing for region-specific terms.