Noctua NF-A14 PWM, Premium Silent Fan, 4-Pin Connection (140mm, Brown)

Premium silent fan, size 140x140x25 mm, voltage 12V, connector 4-pin PWM, rotation speed 1500RPM, noise level 24.6 dB(A), MTTF (Mean Time To Failure) > 150,000h The award-winning NF-A14 A-series design: Noctua's Flow Acceleration Channels and AAO (Advanced Acoustic Optimisation) frame deliver superior and quiet cooling performance. The square frame is optimized for water cooling radiators (all-in-one AIO water cooling, or DIY), PC cases, and other chassis or cabinets with intake and exhaust capabilities for ventilation. The PWM version with automatic speed control via a 4-pin PWM fan header can be used in a wide rotation speed range of 300-1500 rpm. (Using the included low-noise adapter reduces it to 1200 rpm.) Anti-vibration mounts, fan screws, low-noise adapter, extension cable, and a Y-cable for operating two PWM fans on the same header are included.