40mm fan tunnel / tube / extension

This set of 3D printable 40mm fan tunnel extensions is designed to direct and optimize the airflow of PC fans, ensuring efficient ventilation while minimizing the disruption caused by nearby components. With multiple length options — 25mm, 50mm, 75mm, 100mm, 125mm, and 150mm — these tunnels can be used to extend the fan's reach, reducing the dispersion of airflow and preventing interference with surrounding components. By guiding the fan flow precisely where it’s needed, this set helps maximize cooling performance, even in tight spaces or systems with limited airflow pathways.

Whether you're building a new PC setup or looking to upgrade the airflow in an existing system, these extensions will ensure that air is directed precisely where it's most needed, while also protecting nearby parts from unwanted turbulence.

Important Note: When installing these extensions, please ensure you use appropriate mounting screws or fasteners. Due to the added thickness of mounting plates or other installation components, you may need longer screws to secure the tunnel extensions properly. Always verify compatibility with your specific fan and system setup to ensure a secure and safe installation.