Transparent acrylic material, with a clear and elegant appearance. The case fits the RPi 5 board perfectly, with precise cuts and openings for all necessary ports, connectors, and components. Supports installing fans on top without worrying about overheating. Acrylic shell can provide a clear and safe environment, allowing for a better understanding and control of the development board's working principles. Suitable for development and creation space, the acrylic enclosure can protect the development board and make it more aesthetically pleasing and easy to maintain. Specifications: Case Material: Acrylic Case Color: Clear Fan Features: DC Brushless Fits for: for RPi 5 Case Size: Approx. 100x71x35mm/3.94x2.79x1.4in Package: A/B/C/D Optional A: Acrylic Enclosure Only B: Case with Fan C: Case with PWM Fan Heatsink D: Case with Transparent Cooling Fan Note: Note: RPI5 board is not included. Due to the issues 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 measurement. Package Includes: 1Set Case Optional Package