SeaSonic X 850W

This is a 850W unit with 80+ Gold efficiency certification and full cabling. 850W covers a 300W+ flagship GPU plus a high-end CPU with margin to spare. It uses the ATX form factor — confirm your case lists ATX support. Skimping on the PSU is a false economy; better efficiency ratings usually mean better components and longer warranties.

At $159.99 it sits in the high-end power supply bracket. Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing. Seasonic backs the product through its standard warranty channels; check the listing for region-specific terms.