Corsair CO-9050138-WW 140mm case fan

White 140mm RGB case fan

The Corsair CO-9050138-WW is a single 140mm PWM fan finished in white with eight addressable RGB LEDs. It suits builders expanding an existing iCUE SP RGB ELITE cooling loop or adding coordinated lighting to a new build. The hydro bearing and AirGuide vanes are designed for quiet operation across intake, exhaust or radiator positions. Buyers who need a bundled controller or a multi-fan kit should look elsewhere.

PWM speed range and airflow

The fan spins between 450 and 1200 RPM with a tolerance of ten percent, delivering 23.07 to 68.11 CFM at a noise level of 18 to 26.8 dBA. This wide range lets the motherboard or iCUE software balance silence and cooling without a fixed high-speed setting. If your chassis requires a specific static-pressure rating or a narrower acoustic ceiling, this model may not match those targets.

Standard 4-pin mounting

Installation uses the four included screws and a regular 4-pin PWM header; no proprietary connector is required. RGB control needs a separate Corsair iCUE lighting controller, so the lights will stay at default patterns until that hardware is added. A common issue is forgetting the extra controller, leaving the LEDs unsynchronised with the rest of the system.