Overview: Slim & smart design of the cooling pad system with large, high-performance & extra quiet 2 fans build-in which absolutely helps to disipate the heat-air away from from underneath the notebok computer for cooling down the overall temperature of your system;extremely geavy-duty construction of the cooling pad to afford any weight or presure put-on;compatible with any notebook computers Power source supported easily by the plug-&-play USB (Universal Serial Bus) connection as a self-power mode Conveient, reliable & comfortable to carry No need for any installation Specification: Dimensions:8.66in 7.48in 0.79in Weight:8.28oz