be quiet! Silent Wings Pro 4 140mm High Speed 2400 RPM Low Noise PWM Cooling Fan | 4-Pin | BL099 be quiet! Silent Wing

The Ultimate Feature Set

Optimized Fan Blades for Ultimate Performance

Enhance your radiator and heat sink efficiency with our specially designed fan blades. Our blades provide unparalleled performance and cooling, ensuring your system runs at optimal temperatures.

Speed Switch Options

Control the performance with our versatile speed switch, offering three speeds: medium, high, and ultra-high. Choose the optimal setting for your needs, reaching up to 2400 rpm for maximum airflow.

Enhanced Airflow with Aerodynamic Design

Enjoy extremely high air pressure thanks to our small tip clearance and funnel-shaped air outlet. This design ensures smooth airflow and maximum efficiency, enhancing heat dissipation.

Silent Operation

Experience quiet operation at regular speeds with virtually inaudible performance. Our optimized design reduces both noise and vibration, providing a seamless user experience.

Robust Construction

Our 6-pole fan motor and fluid-dynamic bearing offer superior performance stability. Expect less vibration and very smooth operations, which contribute to a longer lifespan and increased efficiency.

Boost your system's performance with our optimized fan blades and enjoy enhanced cooling efficiency, faster speeds, and silent operation.