Noctua NF-A4x10 FLX Case Fan 40 x 40 x 10 mm Beige/Brown

The Noctua NF-A4x10 FLX is a 40x10 mm fan engineered for cooling components in confined spaces where standard-sized fans cannot be installed. It is suitable for applications such as small form factor PCs, network equipment, or other enclosed electronic devices requiring active airflow. This model connects via a standard 3-pin header for power and voltage-based speed control. It is built with Noctua’s SSO2 bearing, a design intended to provide consistent rotational stability and an extended operational lifespan.

Operating at a maximum speed of 4500 RPM, the fan generates 4.83 CFM of airflow with a corresponding noise level of 17.9 dB. The package includes a Low-Noise Adaptor (L.N.A.) that reduces the rotational speed, lowering the acoustic output to 12.9 dB for environments where noise is a primary concern. The fan also comes with an OmniJoin adaptor set, anti-vibration mounts, and an extension cable to accommodate a variety of installation requirements and system configurations.

• Measures 40x40x10 mm for use in compact systems
• Equipped with an SSO2 bearing for long-term reliability
• Connects using a standard 3-pin DC fan header
• Includes a Low-Noise Adaptor for quieter operation
• Supplied with anti-vibration mounts for noise dampening
• Comes with an OmniJoin adaptor set for broad compatibility