Increasing the large Cooling column allows for better heat dissipation. Increase the power cooling column to bring better heat dissipation to your Raspberry Pi 4. No longer worry about overheating. There is no need to install a fan. It also provides perfect heat dissipation. Durable, hard, long-lasting rust-free, wear-resistant, and can be well protected to your Raspberry Pi 4. All ports and slots of the case can fit perfectly with Raspberry Pi 4.