This list include the case for the latest Raspberry Pi 4 Model B and the case for Raspberry Pi 3 Model + The Case is made of Aluminum Alloy with CNC machining manufacturing technology. Its cool design and good-looking are liked by makers It includes the dual fan and thermal tapes which reduce the temperature for Raspberry Pi board There are four screws for you to fix the case with Raspberry Pi board, pls follow the installation instruction. Compatible With: Raspberry Pi 4 Accessory Type: Cases Dual Fan: Low Power Consumption Design. Very Quiet Cooling Fan, You Can Hear Even Nothing. Update Thermal Tape Can Make Sure Best Heat Conduction Effect. For Aluminium Alloy Case and Heatsink: Perfect Size for Raspberry Pi 4 3B 3B+ Big Size Heatsink and Cooling Fan Can Make Sure: No More Overheating Problem. High Quality CNC Aluminium Alloy Case Can Protect your Pi Safe. Open Design Can Make Sure Our CNC Case will not effect Wifi Signal. Colour: Black Material: aluminum alloy casing Package Contents: 3 x radiator 3 x set of mounting screws Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.