NF-A4x10 5V

40x10mm, 5V premium fan

Slim 40x10mm size

Ideal replacement for noisy or broken 4cm fans

Quiet cooling performance

Outstanding airflow and pressure at minimum noise levels

5V version

With OmniJoin adaptor for use with proprietary fan headers

5V version, not for use in PCs.

Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and an AAO standard frame, the NF-A4x10 5V is a dedicated 5V version of Noctua’s highly optimised, premium quality quiet 40x10mm fan. Smooth Commutation Drive technology and Noctua’s reference class SSO2 bearing guarantee superb running smoothness and excellent long-term stability. Topped off with modular cabling, the OmniJoin™ adaptor set and a 6-year manufacturer’s warranty, the NF-A4x10 5V is a premium choice for demanding 5V applications.



Key features

Flow Acceleration Channels

The NF-A4x10 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.

Diagram of Noctua's SSO2 fan bearing. Blue arrows show magnetic self-stabilization, green dashed lines indicate magnetic field.

SSO2 Bearing

The NF-A4x10 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.

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 mounting systems and fan clips used on heatsinks.

Reduced motor hub size

Thanks to its streamlined, compact motor design, the NF-A4x10's motor hub is smaller than with conventional 4cm fans. This allows for more blade surface area and thus contributes to the NF-A4x10's superior airflow and pressure performance.

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