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The NF-A9 is a highly optimised, premium quality quiet 92mm fan. Featuring Noctuas AAO (Advanced Acoustic Optimisation) frame as well as sophisticated aerodynamic design measures such as Flow Acceleration Channels, the NF-A9 further improves the renowned quiet cooling performance of the award-winning NF-B9. The PWM version sports Noctuas custom designed NE-FD1 IC for fully automatic speed control via 4-pin fan headers and comes with a Low-Noise-Adaptor to reduce the maximum speed during PWM control from 2000 to 1550rpm. Its superb running smoothness, reference-class SSO2 bearing and Noctuas trusted premium quality make it an elite choice for the highest demands.
 
NF-A9
 
Succeeding the award-winning NF-B9
 
Noctuas 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.
 
NF-A9
 
Flow Acceleration Channels
 
The NF-A9 impeller features suction side Flow Acceleration Channels. By speeding up the airflow at the crucial outer blade regions, this measure reduces suction side flow separation and thus leads to better efficiency and lower vortex noise.
 
NF-A9
 
AAO Frame
 
Noctuas AAO (Advanced Acoustic Optimisation) frames feature integrated anti-vibration pads as well as Noctuas proprietary Stepped Inlet Design and Inner Surface Microstructures, both of which further refine the fans performance/noise efficiency.
 
Stepped Inlet Design
 
Stepped Inlet Design
 
Noctuas Stepped Inlet Design adds turbulence to the influx in order to facilitate the transition from laminar flow to turbulent flow, which reduces tonal intake noise, improves flow attachment and increases suction capacity, especially in space restricted environments.
 
Inner Surface Microstructures
 
Inner Surface Microstructures  Inner Surface Microstructures

With the tips of the fan blades ploughing through the boundary layer created by the Inner Surface Microstructures, flow separation from the suction side of the blades is significantly suppressed, which results in reduced blade passing noise and improved airflow and pressure efficiency.
 
Integrated Anti-Vibration
 
Integrated Anti-Vibration Pads

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

The NF-A9 features the further optimised second generation of Noctua’s renowned, time-tested SSO bearing. With SSO2, the rear magnet is placed closer to the axis to provide even better stabilisation, precision and durability
 
PWM
 
Custom designed PWM IC with SCD
 
Supporting fully automatic PWM speed control, the NF-A9 PWM uses Noctuas novel, 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 low speeds.
 
LNA
 
Low-Noise Adaptor

The NF-A9 PWM is supplied with a Low-Noise Adaptor (L.N.A.) that reduces the maximum fan speed from 2000 to 1550rpm. The L.N.A can be used either to run the fan at a fixed speed of 1550rpm or to cap the maximum speed when using automatic PWM control.
 
Cabling Options
 
Extensive cabling options
 
The fans 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 to connect a second NF-A9 PWM fan to the same PWM fan header for automatic control.
 
Warranty
 
6 years manufacturers 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 years manufacturers warranty.
 
Specifications
 
Size   92x92x25 mm
 
 
 
Connector   4-pin PWM
 
 
 
Bearing   SSO2
 
 
 
Blade Geometry   A-Series with Flow Acceleration Channels
 
 
 
Frame Technology   AAO (Advanced Acoustic Optimisation)
 
 
 
Rotational Speed (+/- 10%)   2000 RPM
 
 
 
Rotational Speed with L.N.A. (+/- 10%)   1550 RPM
 
 
 
Min. Rotational Speed (PWM, +/-20%)   400 RPM
 
 
 
Airflow   78,9 m/h
 
 
 
Airflow with L.N.A.   62,6 m/h
 
 
 
Acoustical Noise   22,8 dB(A)
 
 
 
Acoustical Noise with L.N.A.   16,3 dB(A)
 
 
 
Static Pressure   2,28 mm H2O
 
 
 
Static Pressure with L.N.A.   1,53 mm H2O
 
 
 
Max. Input Power   1,2 W
 
 
 
Max. Input Current   0,1 A
 
 
 
Voltage   12 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
 
 
 
Warranty   6 years

No additional files, specification sheets, guides or documentation found for product.

Warranty: 6 Year

Full manufacturers warranty details are available at the manufacturers (Noctua) web site.

Unless otherwise specified Techbuy is normally your first point of contact for warranty related returns, further information regarding our warranty policies and consumer guarantees is available on our policies and service & support pages.

To apply for return of a product just go to our returns page.

These terms are in addition to and do not affect any terms, conditions, guarantees and warranties implied by law.

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