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NF-A6x25 PWM A-Series Blades 60x25mm SSO2 Bearing Premium Fan
[NF-A6x25]

  • NF-A6x25
  • NF-A6x25
  • NF-A6x25
  • NF-A6x25
  • AAO Frames feature integrated anti-vibration pads
  • SSO2 bearing, closer to the axis to provide better stabilization, precision and durability
  • PWM Control

Stock Status: Stock Available


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Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctua’s AAO frame, the NF-A6x25 highly optimised, premium quality quiet fanin 60x25mm size. The PWM version sports Noctua’s custom designed NE-FD1 ICfor fully automatic speed control via 4-pin fan headers andcomes with a Low-Noise-Adaptor to reduce the maximum speed during PWM control from 3000 to 2300rpm. Its superb running smoothness,SSO2 bearing and Noctua’s trusted premium quality make it an elitechoice for the highest demands.
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Focused FlowFlow Acceleration Channels
The NF-A6x25 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. button

Varying Angular DistanceReduced Motor Hub Size
Thanks to its streamlined, compact motor design, the NF-A6x25’s motor hub is smaller than with conventional 4cm fans. This allows for more blade surface area and thus contributes to the NF-A6x25’s superior airflow and pressure performance.

HeptaperfAAO Frame
Noctua’s AAO (Advanced Acoustic Optimisation) frames feature integrated anti-vibration pads as well as Noctua’s proprietary Stepped Inlet Design and Inner Surface Microstructures, both of which further refine the fan’s performance/noise efficiency.button

Stepped Inlet DesignStepped Inlet Design
Noctua’s 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. button

Inner Surface MicrostructuresInner 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. button

Integrated Anti-VibrationIntegrated 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 mounting systems and fan clips used on heatsinks.

SSO2Smooth Commutation Drive 2
The latest version of Noctua’s advanced Smooth Commutation Drive system ensures superb running smoothness by eliminating torque variations and switching noises. This makes the NF-A6x25 remarkably quiet even at very close distance. button

SSO2SSO2 Bearing
The NF-A6x25 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. button

LNALow-Noise Adaptor for full flexibility
The NF-A6x25 FLX (Flexibility) is supplied with a Low-Noise Adaptor (L.N.A.) that reduces the maximum fan speed from 4500 to 3700rpm so that it can be fine-tuned for superior airflow or maximum quietness.

LNA3 to 2-pin Adaptor and Polarity Protection
The NF-A6x25 comes with an adaptor from 3-pin Molex to the 2-pin connectors used on many graphics cards or network and storage devices. An integrated diode provides polarity protection on 2-pin connections.

SSO2Extensive 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 the supplied 3:4 pin adaptor allows to connect the fan directly to the power supply.button

Cabling OptionsExtensive 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.

Warranty6 years manufacturer’s warranty
Noctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the NF-A6x25 features an MTBF of more than 150.000 hours rating and comes with a full 6 years manufacturer’s warranty.

Size60x60x25 mm
Mounting hole spacing50x50 mm
Connector4-pin PWM
BearingSSO2
Blade GeometryA-Series with Flow Acceleration Channels
Frame TechnologyAAO (Advanced Acoustic Optimisation)
Rotational Speed (+/- 10%)3000 RPM
Rotational Speed with L.N.A. (+/- 10%)2300 RPM
Min. Rotational Speed (PWM, +/-20%)550 RPM
Airflow 29,2 m³/h
Airflow with L.N.A.22,6 m³/h
Acoustical Noise19,3 dB(A)
Acoustical Noise with L.N.A.13,7 dB(A)
Static Pressure2,18 mm H₂O
Static Pressure with L.N.A.1,29 mm H₂O
Max. Input Power0,96 W
Max. Input Current0,08 A
Voltage12 V
MTBF> 150.000 h
Accessory:
  • Low-Noise Adapter (L.N.A.)
  • 4-Pin Y-Cable
  • 30cm Extension Cable
  • 4 Vibration-Compensators
  • 4 Fan Screws
Warranty6 years
Reviews


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