Overview: 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 underneath 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-&-play USB (Universal Serial Bus) connection as a self-power mode Convenient, reliable & comfortable to carry No need for any installation Compatible with any noteboo Rated Voltage: DC 5 V Specification: Dimensions:5.12in 2.17in 0.94in Weight:1.55oz