Great performance-to-noise ratio with the perfect balance between cooling and silence 6-pole fan motor with three phases giving very low power consumption and less vibration Advanced fluid-dynamic bearing (FDB) enables a super long fan life of up to 300,000 hours Seven fan blades with optimized surface structures ensure excellent airflow The rubberized fan frame is equipped with funnel-shaped air inlets producing extremely high air pressure Removable anti-vibration mountings minimize the transmission of vibrations to the PC case and its components Advanced high quality IC motor controller reduces electrical noise High-speed models are especially recommended for use in powerful water cooling and air cooling set ups PWM controlled fan speed by the motherboard 3-year manufacturer’s warranty Product conception, design and quality control in Germany No Compromise Silence and Performance   be quiet! SilentWings 3 PWM fans stand for state-of-the-art technology, virtually inaudible operation and superior cooling. Their secret: a smooth-running 6-pole fan motor, an advanced fluid-dynamic bearing, a unique airflow-optimized fan blade design and a fan frame with funnel-shaped air inlets. Specification Type: 14cm Case Fan AMD/Intel: N/A Compatibility: - LED Lightin No Colour: Black Weight: 0.3500 kg Fan Dimensions: 140 x 140 x 25 mm Fan Controller: PWM Rotation Speed: 1000 RPM Air Flow: 77.57 / 131.79 Noise level: 28.1 dB(A) Power: Input: 6 Watts Additional Features: See Overview Package Type: Retail Package Weight: 0.3500 kg Warranty: 3 Years