SILENT. WINGS 3 . 140MM . No Compromise Silence and Performance be quiet! SilentWings. ®. 3 140mm stands for state-of-the-art technology virtually inaudible operation and superior cooling. It meets all the requirements to be a perfect choice for heat sinks PC cases and radiators. Virtually inaudible operation at max. 15.5dB(A) . 6-pole fan motor for less power consumption and vibration . Fluid-dynamic bearing enables super-long life span of 300000h . Fan frame with funnel-shaped air inlets for extremely high air pressure . Seven fan blades offer an optimized airflow . German product conception design and quality control . Three years manufacturer's warranty .   .