be quiet! Silent Wings 3 140mm PWM high-speed stands for state-of-the-art technology & virtually inaudible operation. The extremely high air pressure produced makes it a perfect choice for powerful water- & air-cooled systems. Features Great performance-to-noise ratio with 28.1d B (A) at 1, 600rpm 6-pole fan motor for less power consumption & vibration Fluid-dynamic bearing enables super-long life span of 300, 000 hours Fan frame with funnel-shaped air inlets for extremely high air pressure Seven fan blades provide optimized airflow PWM controlled fan speed by the motherboard German product conception, design & quality control Three years manufacturer’s warranty 6-POLE FAN MOTOR State-of-the-art technology 6-pole fan motor with three phases for very low power consumption, less vibration & therefore quiet operation of max. 28.1d B (A). IC MOTOR CONTROLLER Advanced PWM Function Advanced high-quality IC motor controller reduces electrical noise. Pulse-width modulation (PWM) allows all compatible 4-pin controllers (including those built into many motherboards) to intelligently vary the speed of the fan. SURFACE-OPTIMIZED FAN BLADES For even better cooling Seven fan blades with an optimized surface structure ensure virtually inaudible operation & excellent airflow. ANTI-VIBRATION MOUNTINGS Virtually inaudible operation Removable anti-vibration mountings on all four edges of the fan reduce vibrations transmitted to the PC case to an absolute minimum. INGENIOUS FAN FRAME A design for even greater performance The rubberized fan frame is equipped with funnel-shaped air inlets for excellent air circulation & extremely high air pressure, which makes the fan especially suitable for use in powerful water-cooling & air-cooling set ups. DURABLE FLUID-DYNAMIC BEARING For a super long life span The advanced fluid-dynamic bearing (FDB) enables a super long fan life of up to 300, 000 hours & greatly reduced operating noise