Noctua NF-B9 redux

The classic NF-B9 is a long-standing favorite among enthusiast users around the world and helped to found Noctua’s reputation as a top-tier manufacturer of premium quality quiet cooling components. The new redux edition reissues this award-winning model in a streamlined, accessibly priced package that has been reduced to the essential core: the NF-B9 premium fan.

Its industry grade SSO-Bearing, over 150.000 hours MTTF rating and full 6 years manufacturer’s warranty make the NF-B9 redux a proven premium choice that provides trusted Noctua quality at an attractive price point. The 1600rpm PWM version features Noctua’s proprietary NE-FD1 PWM IC for automatic speed control, which allows to strike a perfect balance between high cooling capacity and low noise operation in each given situation.

Supporting fully automatic speed control via PWM, the fan uses Noctua's custom-designed NE-FD1 PWM IC that integrates Smooth Commutation Drive (SCD) technology. By providing smoother torque impulses, SCD suppresses PWM switching noises and thus makes the fan quieter at lower speeds.

Combining the proven concept of hydrodynamic bearings with an additional magnet that supports the self-stabilization of the rotor axis, Noctua's time-tested SSO-Bearing technology has become synonymous with supremely quiet operation and exceptional long-term stability.

Highlights

• Size: 92x92x25 mm
• Mounting hole spacing: 82,5x82,5 mm
• Connector & pin-configuration: 4-pin PWM
• Cable length: 40cm
• Bearing: SSO-Bearing
• Rotational speed (+/- 10%): 1600 RPM
• Min. rotational speed @ 20% PWM (+/-20%): 350 RPM
• Airflow: 64,3 m³/h
• Acoustical noise: 17,6 dB(A)
• Static pressure: 1,61 mm H2O
• Input power (typical): 0,91 W
• Input power (max.): 0,96 W
• Input current (typical): 0,08 A
• Max. input current: 0,08 A
• Operating voltage: 12 V
• MTTF: > 150.000 h
• Package: Fan, 4 Fan Screws
• Warranty: 6 years