Reeven Coldwing 12 Silent Performance 500-1500RPM Fan with PWM Auto Shut Down and Restart High Air Flow Low Noise 20% less Noise when compared to same Air Flow Inner-flow channel without separation for better cooling efficiency Engineered to supply with high air-flow and static pressure FAN DIMENSION Bearing Type MTTF VOLTAGE WEIGHT W120 x H120 x D25mm sleeve bearing 30.000hrs 12V 155g FAN SPEED AIR FLOW STATIC PRESSURE NOISE LEVEL CURRENT RPM CFM inch H2O dBA A 300~1500 16.6~82.1 0.003~0.067 4.0~29.8 0.25 For More Information about this product Visit: http://www.reeven.com/cold-wing-12/ Reviews: http://www.actualidadhardware.com/review-reeven-coldwing-12-silent-y-silent-performance-pwm/ http://www.eteknix.com/reeven-coldwing-12-fan-series-review/ http://www.dvtests.com/reeven-coldwing-120mm-silent-and-120mm-silent-perf-with-pwm-review/ http://www.actualidadhardware.com/review-reeven-coldwing-12-silent-y-silent-performance-pwm/