Compatible with all versions of raspberry pie footnotes, Raspberry pin pins can be used, the board is suitable for Raspberry Pi 4B/4B+/3B+/3B/2B+/2B/B     The Expansion board is made of PCB process, it with LED, will bring the dazzling effect. You could see the LED light from heat sink icon after you finished the installation.     Clear pin mark, GPIO function fully displayed. All GPIO pins are pulled out, So when the Raspberry Pi is being cooled, its development function will not be affected.     The cooling fan adopts active cooling mode, the heat can be discharged in time. On the other hand, keep the raspberry pi connection to be convenient.          Product Performance:     Compatible with multiple versions of Raspberry Pi; All GPIO pins are pulled out, So when the Raspberry Pi is being cooled, its development function will not be affected.     The fan adopts active heat dissipation mode, which is better than passive heat dissipation     Product Parameters:     Nominal voltage: DC 5V     Current: 0.2A     Colour:As shown     Material:ABS     Size:6.5x5.6x0.9cm          Package Contents:     1* Expansion Board with Fan          Only the above package content, other products are not included.     Note: Light shooting and different displays may cause the color of th