Noctua NF-A6x25 PWM, Premium Quiet Fan, 4-Pin (60mm, Brown)

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Product Description

Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctua’s AAO frame, the NF-A6x25 is a highly optimised, premium quality quiet fan in 60x25mm size. The PWM version sports Noctua’s 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 3000 to 2300rpm. Its superb running smoothness, SSO2 bearing and Noctua’s trusted premium quality make it an elite choice for the highest demands.

AAO 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.

Reduced motor hub size

Thanks to its streamlined, compact motor design, the NF-A6x25’s motor hub is smaller than many conventional 6cm fans. This allows for more blade surface area and thus contributes to the NF-A6x25’s superior airflow and pressure performance.

SSO2 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.

Flow 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.

Scope of Delivery

NA-RC12 Low-Noise Adaptor (L.N.A)
NA-YC1 4-pin PWM y-cable
NA-EC1 30cm extension cable
4x NA-AV1 anti-vibration mounts
Fan screws

Custom-designed PWM IC with SCD

Supporting fully automatic PWM speed control, the NF-A6x25 PWM 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 low speeds.

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Price
$14.95$14.95
$14.95$14.95
$14.95$14.95
$14.95$14.95

Connector
4-pin PWM
3-pin
4-pin PWM
3-pin

Voltage
12V
12V
5V
5V

RPM
Max: 3000 / Min: 550
3000
Max: 3000 / Min: 650
3000

RPM with L.N.A.
2300
2400
–
–

RPM with U.L.N.A.
–
1600
–
–

Acoustical Noise
19,3 dB(A)
19,3 dB(A)
19,3 dB(A)
19,3 dB(A)

Acoustical Noise with L.N.A.
13,7 dB(A
14,5 dB(A)
–
–

Acoustical Noise with U.L.N.A.
–
8,2 dB(A)
–
–

Size
60x60x25 mm
60x60x25 mm
60x60x25 mm
60x60x25 mm

Colour
Brown & Beige
Brown & Beige
Brown & Beige
Brown & Beige

Premium quiet fan, 60x60x25 mm, 12V, 4-pin PWM, max. 3000 RPM, max. 19.3 dB(A), >150,000 h MTTF
Award-winning 60x25mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
Ideal replacement for noisy or broken 12V 6cm fans in DVRs, NAS, network and storage devices, 3D printers, etc.
4-pin PWM version for automatic speed control via 4-pin PWM fan headers, broad 550-3000rpm speed range (2300rpm max. with supplied Low-Noise Adaptor)
Includes anti-vibration mounts, fan screws, Low-Noise Adaptor, extension cable and y-cable for running two PWM fans on the same header

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