PC Fan NOCTUA NF-A15 PWM:A new generation high-end fan, 140mm in diameter, designed to cool computer cabinets. Its blade speed reaches 1200RPM, or when the L.N.A adapter is used, the speed is reduced to 900RPM. Speed is controlled by the Smooth Commutation Drive (SCD), which ensures full automatic adjustment, quiet operation and very little power. You will also appreciate the possibility of setting the speed to only 300 RPM when the maximum noise limit is reached. Air flow is increased by channels at the end of the blades.The resulting air flow rate is 115.5 m3/h at full speed or 88.7m3/h when using LNA. The noise level can be influenced by the speed setting, with a maximum speed of 19.2dB and reduced only by 13.8dB. To reduce fan noise, anti-vibration pads in the product frame also help.The size of this model is 140 x 150 x 25mm. To the motherboard, the fan is connected via a 4-pin connector. Ball bearings SSO2 with MTFB up to 150,000 hours are used here.Parameters and Specifications:Dimensions:140 x 150 x 25 mmPower connector:4-pin PWMSpeed Speed:1200 RPM900 RPM with LNANoise:19.2 dB13.8 dB with LNAMaximum Input Current:0.08 ATension:12 VBearings:SSO2MTFB:150 000 hoursPackage contents:4-pin Y cable, 30 cm extension cable, 4 x anti-vibration pad, 4 x screws