Expansion board for raspberry pi 4b/3b+/3b case with heat sink and cooling fan

Product description Multi-function Cooling Expansion Board designed for the Raspberry Pi Features: 1. It is perfectly compatible with for Raspberry Pi 4B/3B+/3B and extends its life. It will not occupy any Raspberry Pi pin, not occupy heat sink space. 2. The large-size cooling fan on the board with strong wind power, it can make Raspberry Pi can run more stably by automatically adjust the speed according to the CPU temperature. 4. 3 high-brightness RGB programming lights on the bottom of the expansion board, which can realize following lights, breathing lights, marquees and so on. 5. It also expands Raspberry Pi 40pin header and can be used to connect to other devices. We will provide a driver package for all Raspberry Pi images, which is convenient for users to drive fans, OLED displays, RGB lights. Note: For Raspberry Pi 3B+ board. Even if 3B+ is not boot, as long as the USB is plugged in 3B+ board, the 3.3V pin will output 3.3V. If the Raspberry-Pi is abnormal, the 3.3V pin will have no voltage. Specification: Cooling board: Size: 65mm*56mm Weight: 34.1g Cooling fan: Size: 40mm*40mm Package Including 1Set

Not Include Raspberry Pi Board！！！！！