Noctua NF-A4x10 5V PWM Case Fan 40 x 40 x 10 mm, Brown

The Noctua NF-A4x10 5V PWM is a 40 x 40 x 10 mm fan designed for applications that require a 5V power input and precise speed control. It is suitable for compact and space-constrained enclosures such as network devices, 3D printers, or small form factor PC builds. This model integrates Noctua's Self-Stabilising Oil-pressure (SSO2) bearing, a design that contributes to operational stability and a long service life. Its 4-pin PWM connector allows for automatic speed adjustments based on system temperature, providing a dynamic range from 1000 to 5000 RPM.

At its maximum rotational speed, the fan generates 5.24 CFM of airflow and 1.95 mmH₂O of static pressure. The acoustic output is rated at 19.6 dB(A) under full load, positioning it as a low-noise component for its performance class and compact size. This balance of airflow and pressure is tuned for moving air through filters or moderately restrictive areas within a small chassis. The package includes several accessories for broad compatibility, including an OmniJoin adaptor set for custom wiring, anti-vibration mounts, and a USB power adaptor cable for versatile connectivity options.

• Measures 40 x 40 x 10 mm for compact installations
• Features 4-pin PWM for automatic speed regulation
• Utilizes an SSO2 bearing for enhanced longevity
• Operates on a standard 5V power supply
• Provides a rotational speed range of 1000 to 5000 RPM
• Includes anti-vibration mounts and connectivity adaptors