Features: Excellent heat dissipation effect: This product is equipped with a heat dissipation fan and an aluminum alloy protective cover effectively reducing the working temperature for RPI5 mainboard, improving stability and performances All ports reserved: All slots can be perfectly matchedfor RPI 5 board. Aluminum shell not only provides good heat dissipation, but also provides additional protections for your mainboard Easy installation: The product design is compact and easy to install, allowing users to quickly install it on the for RPI5 mainboard without the need for additional tools. Quiet operation: The cooling fan adopts a quiet, which reduces the noise during operation and does not interfere with the user experience Home DIY projects, school experiments, IoTs development, embedded system design, etc. Specifications: Material: Aluminium Alloy Size: approx 85x22x56mm/3.35x0.87x2.2inches Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Does not include OrangePi 5 5B Board Package includes: 1PC Aluminum Alloy Case 1PC Cooling Fan 4PCS Heatsinks 1Set Screws 1PC Screwdriver