From the manufacturer Diffused LED Illumination An opaque fan blade diffuses lighting to ensure stunning LED illumination. Low-Noise Operation High Airflow Up to 62 CFM of airflow at peak 1,150 RPM. A custom fan blade and hydraulic bearing allow for low-noise operation. High Airflow and Strong Static Pressure AF140 offers the ideal combination of high airflow and strong static pressure, allowing for use as a case fan, or with CORSAIR Hydro Series Liquid CPU coolers. Corsair AF140 LED cooling fans combine bright LED lighting, strong static pressure, low noise and high airflow to deliver great cooling performance anywhere in your PC. Whether it’s as an intake or exhaust case fan, or mounted to a Corsair Hydro Series liquid CPU cooler’s radiator, AF140 LED fans provide up to 62 CFM of airflow where your system needs It most. Available in a choice of red, white or blue, AF140 LED’s four hub-mounted LEDs radiate vivid and diffused lighting across a specially designed Opaque fan blade, illuminating your system with a brilliant burst of color. Tech Support # 1-888-222-4346 opt #1