This ICE Tower Cooling Fan black is burned for solving heat dissipation problem too! Tower structure, 5mm copper tube, multi-layer heat sinks, 7 blades powerful fan, all the above combinations make this super radiator for Raspberry Pi. In the case of overclocking, it can reduce the temperature of the Raspberry Pi from 80? to 40?. Best of all, this super cooling fan support both Raspberry Pi 3B+ and the new Raspberry Pi 4B. The fan has 7 different color LEDs that change automatically, making your fan more beautiful and personalized.