This DIN rail holder is designed to improve the cooling of electronics, especially in systems such as the Voron 2.4 3D printer, where a Raspberry Pi 4 often requires constant temperature control. As one of the functional DIN rail holders on the market, this version offers space for a 4010 fan, providing a reliable and stable mounting solution. It effectively contributes to maintaining the optimal operating temperature for your components. The holder utilises the Voron 2.4 design's PCB din-clip, ensuring seamless integration with existing DIN rail mounts. This practical addition helps prevent overheating and ensures long-lasting performance for your electronics.