[ Newest Case For Raspberry Pi 4b ] - The Case Is Quiet And Powerful And Fit For Raspberry Pi 4b. [ High Quality Material ] - It Is Made Of Aluminium Alloy, Corrugated Design, Solid, Durable And Better Heat Ferable. Keep Your For Pi At A Efficient Cooling Condition, Extend Service Life And Improve Performance. [ Efficient Heat Dissipation ] - It Has Temperature Control , Built-in Thermal Column, Free Silicone Paste Thermal Silicone Pad. The Mental Case Can Efficiently Drop The Temps For Your Pi. [ Hollow-carved Design ] - Reserve Pi, Csi, Dsi, Poe, 40pin Pins And Other Interfaces, Which Is More Convenient To Use And Not Affect The Mission Function Of Wifi And Bluetooth. [ Precise Counterpoint ]: Our Cooling Case For Raspberry Pi 4 Model Adopts Advanced And Exquisite Cutting Technology, Which Ensures Each Interface Can Be Highly Adhered To The Mainboard. Colour:gray/black Material:aluminum Alloy Package Contents: 1 X Shell 1 Set X Matching Screws Only The Above Package Content, Other Products Are Not I