For Dual Fan:
1. Design of low energy consumption.
2. Dual cooling experience, no more overheating problems.
3. Very quiet cooling fan, you won't be bother by the noise.
4. All the fans are very nice quality control.
5. The thermal update tape can guarantee the best thermal driving effect.
For Aluminum Case:
1. Perfect Size for Raspberry Pi 4B / 3B+ / 3B.
2. Big Size Heatsink and Cooling Fan Can Make Sure provide best heat dissipation.
3. High Quality CNC Aluminium Alloy Case Can Protect your Pi Safe. Radiation protection and difficult to rust.
4. Open Design Can Make Sure Our CNC Case will not effect Wifi Signal.