ROG Thor 850W Platinum II is the quietest PSU in its class.

Lambda A++ Certification confirms the latest Thor wields menacing power in absolute stealth.
ROG heatsinks cover critical components, delivering lower temperatures and reduced noise.
A 135mm wing-blade fan with PWM control delivers lower noise and keeps thermals in check.
Built with low-ESR capacitors and other premium components to achieve 80 Plus Platinum Certification.
OLED display monitors power draw in real time.
Aura Sync compatibility lets you customize and sync lighting effects with other compatible hardware.