SILENT. WINGS 3. 140MM. No Compromise Silence & Performance be quiet! Silent Wings. ®. 3 140mm stands for state-of-the-art technology virtually inaudible operation & superior cooling. It meets all the requirements to be a perfect choice for heat sinks PC cases & radiators. Virtually inaudible operation at max. 15.5d B (A). 6-pole fan motor for less power consumption & 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 & quality control. Three years manufacturers warranty. .