Dual-ring aperture design, high performance and great build quality unparalleled customization and optimal thermal balance, maximum 2000 RPM fan speed, maximum 45.03 CFM airflows, maximum 32.6dBA noise, up to 40000 hours lifespan, 7 color RGB lighting, PWM intelligent case fan, automatically adjust according to temperature, 120 x 120 x 25 mm dimension.