Be Quiet (BL066) Silent Wings 3 PWM Case Fan, 12cm, Black, Fluid Dynamic Bearing     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: 12cm Case Fan Compatibility: - Fan Connector(s): 4-pin #Hide#LED Lightin No Colour: Black Weight: 0.3000 kg Fan Dimensions: 120 x 120 x 25 mm Fan Controller: PWM Rotation Speed: 1450 RPM Air Flow: 50.5 / 80.47 Noise level: 16.4 dB(A) Power: Input: 1.44 Watts Additional Features: See Overview MTBF: \"300,000 hours\" Package Type: Retail Package Weight: 0.3000 kg Warranty: 3 Years