The be quiet! Silent Wings 4 140mm PWM High-Speed Case Fan delivers powerful cooling with exceptionally quiet operation, making it ideal for high-performance gaming PCs and enthusiast workstations. With speeds of up to 2,500 RPM, optimized fan blades and a funnel-shaped frame, it provides high airflow and static pressure for demanding case, radiator and heatsink applications. Its six-pole motor and fluid-dynamic bearing help minimize vibration, while interchangeable mounting options offer flexibility for different cooling setups.
140mm high-speed PWM fan, up to 2,500 RPM, 76.7 CFM airflow, 3.96 mmH₂O static pressure and fluid-dynamic bearing.
Optimized fan blades and a funnel-shaped frame deliver high static pressure for demanding PC case, radiator and heatsink cooling.
Designed for standard 120mm fan mounts. Connects through a 4-pin PWM motherboard header or compatible fan controller. Includes screw and anti-vibration push-pin mounting options.
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