Please Kindly Note: Raspberry Pi Board is not included 3510 Version Extreme Cooling Fan Kit For Raspberry Pi 3B/3B+/4B is a brand new Cooling system for your Raspberry Pi 3B/3B+/4B. Its a completely new radiator, and its a very cool cooling system after the armor shell. And it fit for all of your case so that you do not need to buy another case for your raspberry pi. The fan is 3510 version and more powerful but still quite when it is running. Two aluminum blocks will touch the MCU tightly and good for the heat spreading. works excellent, contour artistic, easy to operate, safe to use. Features: Design for Raspberry Pi 3B/3B+/4B The fan is very quiet at runtime Easy to assemble Appearance is quite cool Good heat dissipation Safe to use Size: app.80x60x20mm Color: As the pictures shown Quantity: 1 Pc Package Includes: 1x 3510 Version Extreme Cooling Fan 1x Heat sink Kit for Raspberry Pi 4B 1x Heat sink Kit for Raspberry Pi 3B+/3B