PC Fan NOCTUA NF-P14s redux 900:The NOCTUA NF-P14s redux 900 is based on award winning models from the NOCTUA brand. It employs the power of nine blades on an integrated 140mm diameter rotor. The blade speed is up to 900rpm and air flow is increased by notches at the end of the blades. The fan is connected via a 3-pin connector to the motherboard. It also offers an unprecedented average time of trouble free operation of over 150,000 hours (17 years!). All of this with outstanding performance, legendary quiet operation and all the great features that will be appreciated by true computer enthusiasts.  SSO bearingsWell-proven proprietary Noctua bearings have been further refined to provide the quietest possible operation. The NOCTUA NF-P14s redux 900 utilizes optimized SSO bearings with the rear magnet positioned closer to the axis, offering better stability, precision and durability.  Extensive connection supportThe fan is equipped with a twenty centimetre cable, with an optional 30 centimetre extension cable, however, you plug it into almost any spacious cabinet. Both cables are fully braided and the Y-structure allows the second fan to connect to the same PWM head for automatic speed control.Additional information:Basic:Bearing: SSO (self-stabilizing oil bearing)Speed: 900rpm.Air flow: 83.7m3 /hNoise: 13.2dB (A)Static pressure: 0.77mmH2OMax. Power consumption: 0.85WMax. Current consumption: 0.07AVoltage: 12VLifetime:> 150,000 hoursConnector:3-poleStandard Packaging:NOCTUA NF-P14s redux 900 fan4 fan screws