Slim & smart design of the cooling pad system with Large, high-performance & extra quiet 3 Fans built-in which absolutely helps to dissipate the heat-air away from undertneath the notebook computer for cooling down the overall temperature of your system. Extremely heavy-duty construction of the cooling pad to afford any weight or pressure put-on. Power source supported easily by the plug-and -play USB connection as a self-power mode Convenient, reliable and comfortable to carry. No need for any installation. Extra 4 port USB connectors and with optional AC power adaptor Compatible with any notebook computer.