Corsair RM850i 850W
Category: Power Supply
Manufacturer: Corsair
Wattage: 850W
Efficiency: 80+ Gold
Modular: full
Corsair RM850i 850W
Wattage
850W
Efficiency
80+ Gold
Modular
full
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Overview
This is a 850W unit with 80+ Gold efficiency certification and full cabling. It uses the ATX form factor — confirm your case lists ATX support. 850W covers a 300W+ flagship GPU plus a high-end CPU with margin to spare. A dependable power supply protects everything downstream, and efficiency tiers are a decent proxy for overall build quality.
Drop it into the PlanMyPC builder to check compatibility with the rest of your parts. Corsair backs the product through its standard warranty channels; check the listing for region-specific terms. The full specification sheet below breaks out every listed detail, and the compatibility checker flags conflicts with parts already in your build.
| Specification | Value |
|---|---|
| Modular | full |
| Wattage | 850 W |
| Efficiency | 80+ Gold |
| Form Factor | ATX |
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