Description:This list include the case for the latest 4 Model B and the case for 3 Model +The Case is made of Aluminum Alloy with CNC machining manufacturing technology. Its and good-looking are liked by makersIt includes the dual fan and thermal tapes which reduce the temperature for boardThere are four screws to fix the case with board, pls follow the installation instruction.Compatible With: 4Accessory Type: CasesDual Fan:Low Power Consumption Design.Very Quiet Cooling Fan, You Can Hear Even .Update Thermal Tape Can Make Sure Best Heat Conduction Effect.For Aluminium Alloy Case and Heatsink:Perfect Size for 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 not effect Wifi Signal.Colour: BlackMaterial: aluminum alloy casingPackage Contents:1 * radiator1 * set of mounting screwsOnly 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.