Power Supplies · Corsair

Corsair SF850 850W SFX

Corsair SF850 850W SFX for local AI desktops and workstations that need clean stable power for a high draw GPU.

Corsair SF850 850W SFX is a ATX PSU product from Corsair built for desktop and workstation systems that run local AI workloads. It suits model loading, dataset handling and daily creation work where clean stable power for a high draw GPU matters in a home lab or office build.

Specifications

Name	Corsair SF850 850W SFX
Brand	Corsair
Category	Power Supplies
Type	ATX PSU
Power (TDP)	850 W
Key spec	80 Plus Platinum
Key spec	ATX 3.1
Key spec	PCIe 5.1 12V-2x6 connector
Key spec	Fully modular
Key spec	Rated 850W
Best for	GPU workstation; LLM inference; local AI build
Specs source	Corsair product page
Last verified	2026-11-14