Noctua Cooling Solutions
Noctua's premium cooling components are internationally renowned for their superb quietness, exceptional performance and quality.
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.
 NF-A6x25 PWM |  NF-A6x25 FLX |  NF-A6x25 5V PWM |  NF-A6x25 5V | |
|---|---|---|---|---|
| Customer Reviews | — | — | — | — |
| Price | — | — | — | — |
| 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 | - no data | - no data |
| RPM with U.L.N.A. | - no data | 1600 | - no data | - no data |
| 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) | - no data | - no data |
| Acoustical Noise with U.L.N.A. | - no data | 8,2 dB(A) | - no data | - no data |
| Size | 60x60x25 mm | 60x60x25 mm | 60x60x25 mm | 60x60x25 mm |
| Colour | Brown & Beige | Brown & Beige | Brown & Beige | Brown & Beige |
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.
NF-A6x25 PWM | NF-A6x25 FLX | NF-A6x25 5V PWM | NF-A6x25 5V | |
|---|---|---|---|---|
| Customer Reviews | — | — | — | — |
| Price | — | — | — | — |
| 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 | - no data | - no data |
| RPM with U.L.N.A. | - no data | 1600 | - no data | - no data |
| 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) | - no data | - no data |
| Acoustical Noise with U.L.N.A. | - no data | 8,2 dB(A) | - no data | - no data |
| Size | 60x60x25 mm | 60x60x25 mm | 60x60x25 mm | 60x60x25 mm |
| Colour | Brown & Beige | Brown & Beige | Brown & Beige | Brown & Beige |
Noctua Cooling Solutions
Noctua's premium cooling components are internationally renowned for their superb quietness, exceptional performance and quality.
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