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Noctua NF-A9 PWM - 92mm Case Fan


  • Type: Case Fan
  • Bearing Type: SSO2 ( Self-stabilising oil-presure bearing )
  • RPM: 2000 RPM ( standard ), 1550 RPM ( w/ L.N.A ), 400RPM ( Mini Rotation Speed)
  • Air Flow: 78.9 m³/h (standard), 62.6 m³/h ( w/L.N.A. )

Stock Status: Stock Available

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The NF-A9 is a highly optimised, premium quality quiet 92mm fan. Featuring Noctua’sAAO(Advanced Acoustic Optimisation) frame as well as sophisticatedaerodynamic design measures such asFlow Acceleration Channels, the NF-A9 further improvesthe renowned quiet cooling performance of the award-winning NF-B9. The PWM version sports Noctua’s custom designedNE-FD1 IC for fully automatic speed control via 4-pin fan headers andcomes with a Low-Noise-Adaptor to reduce the maximum speed during PWM control from 2000 to 1550rpm. Its superb running smoothness, reference-classSSO2 bearing and Noctua’s trusted premium quality make it an elitechoice for the highest demands.

Succeeding the award-winning NF-B9

Succeeding the award-winning NF-B9

Noctua's NF-B9 fan has become a default-choice among PC enthusiasts looking for a premium quality quiet 92mm fan.Thanks to its thoroughgoing aerodynamic optimisations, the NF-A9 provides higher static pressure and an even better airflow/noise ratio than its much acclaimed predecessor.
Flow Acceleration Channels

Flow Acceleration Channels

The NF-A9 impeller features suction side Flow Acceleration Channels. By speeding up the airflow at the crucial outer bladeregions, this measure reduces suction side flow separation and thus leads to better efficiency and lower vortex noise.
Stepped Inlet Design

Stepped Inlet Design

Noctua's Stepped Inlet Design adds turbulence to the influx in order to facilitate the transition from laminar flow to turbulentflow, which reduces tonal intake noise, improves flow attachment and increases suction capacity, especially in space-restricted environments.
Integrated Anti-Vibration Pads

Integrated Anti-Vibration Pads

Integrated Anti-Vibration Pads made from extra-soft silicone minimise the transmission of minute vibrations whilemaintaining full compatibility with all standard screws and other mounting systems.
SSO2 Bearing

SSO2 Bearing

The NF-A9 features the further optimised second generation of Noctua's renowned, time-tested SSO bearing. With SSO2, the rear magnet isplaced closer to the axis to provide even better stabilisation, precision and durability.
Custom-designed PWM IC with SCD

Custom-designed PWM IC with SCD

Supporting fully automatic PWM speed control, the NF-A9 PWM uses Noctua's novel, custom-designed NE-FD1 PWM IC thatintegrates Smooth Commutation Drive (SCD) technology. By providing smoother torque impulses, SCD suppresses PWM switching noises and thus makes the fan quieterat low speeds.
Low-Noise Adaptor

Low-Noise Adaptor

The NF-A9 PWM is supplied with a (L.N.A.) that reduces the maximum fan speed from 2000 to 1550rpm. The L.N.A. can be used either to runthe fan at a fixed speed of 1550rpm or to cap the maximum speed when using automatic PWM control.
Extensive cabling options

Extensive cabling options

The fan's short 20cm primary cable minimises cable clutter in typical applications while the supplied 30cm extension provides extended reach when necessary. Both cables are fully sleeved and a 4-pin y-cable allows the connection of a second NF-A9 PWM fan to the same PWM fanheader for automatic control.
6-year manufacturer’s warranty

6-year manufacturer’s warranty

Noctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the NF-A9 features an MTBF of more than 150.000 hours rating and comes with a full 6-year manufacturer’s warranty.
Size92x92x25 mm
Mounting hole spacing82,5x82,5 mm
Connector4-Pin PWM
Blade GeometryA-Series withFlow Acceleration Channels
Frame TechnologyAAO (Advanced Acoustic Optimisation)
Rotational Speed (+/- 10%)2000 RPM
Rotational Speed with L.N.A. (+/- 10%)1550 RPM
Min. Rotational Speed (PWM, +/-20%)400 RPM
Airflow78,9 m³/h
Airflow with L.N.A.62,6 m³/h
Acoustical Noise22,8 dB(A)
Acoustical Noise with L.N.A.16,3 dB(A)
Static Pressure2,28 mm H₂O
Static Pressure with L.N.A.1,53 mm H₂O
Max. Input Power1,2 W
Max. Input Current0,1 A
Voltage12 V
MTBF> 150.000 h
Scope of Delivery
  • Low-Noise Adaptor (L.N.A.)
  • 4-Pin Y-Cable
  • 30cm Extension Cable
  • 4 Vibration-Compensators
  • 4 Fan Screws
Warranty6 years

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