AirBase-3 features 4 high-speed fans that generate cool air to keep the laptop running efficiently and prevent overheating. The rubber grips on the surface of the AirBase-3 keep your laptop in place to provide a sturdy workspace. The fan speed can be controlled, to maintain an optimum temperature of your laptop. The fans are working to dissipate heat quickly and work silently. The device plugs directly into the USB port and no additional power is required.