Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctua's AAO frame, the NF-A6x25 FLX is a highly optimised, premium quality quiet fan in 60x25mm size. Smooth Commutation Drive technology and Noctua's reference class SSO2 bearings guarantee superb running smoothness and excellent long-term stability. Topped off with modular cabling, Low-Noise Adaptors and six years manufacturer's warranty, the NF-A6x25 is a premium choice for the highest demands. Specifications Size 60x60x25 mm Screw hole spacings 50 mm Connector 3-pin Bearing SSO2 Blade Geometry A-Series with Flow Acceleration Channels Frame Technology AAO (Advanced Acoustic Optimisation) Rotational Speed (+/- 10%) 3000 RPM Rotational Speed with L.N.A. (+/- 10%) 2400 RPM Rotational Speed with U.L.N.A. (+/- 10%) 1600 RPM Airflow 17.2 CFM Airflow with L.N.A. 13.8 CFM Airflow with U.L.N.A. 9.8 CFM Acoustical Noise 19.3 dB(A) Acoustical Noise with L.N.A. 14.5 dB(A) Acoustical Noise with U.L.N.A. 8.2 dB(A) Static Pressure 2.18 mm H2O Static Pressure with L.N.A. 1.41 mm H2O Static Pressure with U.L.N.A. 0.61 mm H2O Max. Input Power 1.44 W Max. Input Current 0.12 A Voltage 12 V MTBF > 150,000 h Accessories Low-Noise Adaptor (L.N.A.), Ultra-Low-Noise Adapter (U.L.N.A.), 3 to 4-Pin Adaptor, 30cm Extension Cable, 3 Vibration-Compensators and 4 Fan Screws Warranty 72 months