Nine-blade design offers a higher airflow and quiet cooling solution for the best performance PWM capabilities built-in to precisely control the speed to achieve optimized fan curve Rigid frame design and included rubber dampeners helps to prevent vibration Low-noise operation without sacrificing performance Digital RGB lighting solution to sync with Phanteks DRGB products and compatible DRGB Motherboards SK140 D-RGB PWM Fan (140mm) Cool your computer chassis with optimal noise level and in style with this 140mm case fan from Phanteks. With 9-blade design, PWM control, and thoughtful craftsmanship, it delivers massive airflow yet operates extremely quiet. Built-in D-RGB LEDs bring a dazzling lighting effect to glorify your rig. D-RGB Lighting A total of 12 D-RGB LEDs provide a smooth and even lighting effect in all blades. Included D-RGB daisy-chain connectors offer easy cable management and are compatible with all Phanteks D-RGB cases. High Performance Thanks to its 9-blade design, the fan generates high-volume airflow to cool any computer compatible chassis fast and effectively. PWM Control PWM (Pulse-Width Modulation) offers precise fan speed control to optimize performance and avoid unnecessary noise. Built for Silence Unique rigid frame design, silent sleeve bearing—Rifle Bearing, and rubber dampeners work together to reduce vibration and noise to the minimum.