This Ice Tower cooler kit, featuring a five-layer acrylic shell, is designed specifically for the Raspberry Pi 4B. The ICE Tower cooling structure utilizes 5mm pure copper heat pipes and multi-layer aluminum fins, paired with a 4010 fan, effectively reducing CPU temperature from 80°C to 40°C during overclocking. The transparent five-layer acrylic shell perfectly accommodates the cooler, showcasing the internal hardware while providing robust protection. The kit includes a 4010 fan, aluminum heatsinks, a mini screwdriver, and a complete set of installation accessories, making assembly simple. With reserved space for GPIO interfaces, it's an ideal cooling solution for Raspberry Pi 4B overclocking and extended operation.