AirBase-1 features two fans that generate cool air to keep the laptop running efficiently and prevent overheating. The rubber grips on the surface of the AirBase-1 keep your laptop in place to provide a sturdy workspace. Fan speed can be controlled, to maintain an optimum temperature of your laptop. The device plugs directly into the USB port and no additional power is required. The Promate AirBase-1 sleek, rustic design that complements your laptop perfectly, while its extra-large, extra-quiet fan is the perfect way to keep your laptop cool while you work. Just rest your laptop on the stand, plug the USB-A adapter in (no external power is required) and feel the heat dissipate from your laptop within seconds. The AirBase-1 cooling pad consists of two USB Ports. One port conveniently powers the pad with no requirement for a power adapter, while the latter can be used to connect phones, hard drives, keyboards and other USB devices.