No Compromise Silence and Performancebe quiet! SilentWings 3 120mm PWM high-speed stands for state of the art technology and virtually inaudible operation. The extremely high air pressure produced makes it a perfect choice for powerful water- and air-cooled systems.SilentWings 3 PWM high-speed fans are your best choice for any application that requires the ultimate in quiet operation and uncompromised performance.Features:- Great performance-to-noise ratio with 28.6dB(A) at 2,200rpm- 6-pole fan motor with three phases giving very low power consumption and less vibration- Advanced fluid-dynamic bearing enables super-long life span up to 300,000h - Rubberized fan frame with funnel-shaped air inlets for extremely high air pressure - Seven fan blades with optimized surface structures ensure excellent airflow - Removable anti-vibration mountings reduce transmission of vibrations - PWM controlled fan speed by the motherboard - German product conception, design and quality control - Three years manufacturers warrantySpecification:- Dimensions (L x W x D), (mm): 120 x 120 x 25- Fan speed @ 12V 100% (rpm): 2,200- Airflow @ 12V (cfm, m3/h): 73.33 / 124.58- Air pressure @ 12V (mm H2O): 3.37- Noise level @ 12V 100% (dB(A)): 28.6