Features: This protective case is specifically for RPI5 board, with optional fan heatsinks, effectively reducing the temperature for RPI5, operation and providing excellent heat dissipation. Aluminum material oxidation sandblasting process, smooth and hardened, aluminum material is more conducive to heat dissipation Compatibles installing heat sinks. Place the heat sink in the correct position and press down firmly on the correct hole. The auxiliary power button hole can be pressed by finger to achieve switching easily. Can be fixed on wall with four holes left, and screws can be installed to fix on wall. The screws need to be provided by your own Specifications: Material: AluminiumAlloy Size:Mixed For RPI5 Types: A/B/C/D/E/F/G/H A: with 3007 PWM Fan B: with 4010 PWM Fan C: with 3007 PWM Fan and Copper Heatsink D: with 4010 PWM Fan and Copper Heatsink E: with Silver 3007 Heatsink Fan F: with Silver 3007 Heatsink Fan G: with Black 3010 Heatsink Fan H: with 3007 Copper Heatsink Fan Package Includes: 1Set Cooling Case note: Due to the problemsof lighting effects and shootingangles, there will be tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Do not include mainoard