Features: Keep for RPi 4 board cool with this reliable plastic case. Removable GPIO cover for easy customization and access to interfaces. Support the installation of cooling fan to provide good heat dissipation for the mainboard. For heat dissipation, and easy for replacing the casing. Great for educational purposes, creative experiments, and projects. Specifications: Type: ABS Enclosure Case Model: for RPI 4 Heatsink Case Material: ABS Housing Types: Enclosure Only/ Enclosure with Cooling Fan Enclosure Size: As Pictures Color: Black / Clear Package Includes: 1Set ABS Case(Optional Package) note: Due to the problemsof lighting effects and shooting angle, there will mightbe certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store