Features and benefits: 1. Slim and smart design of the cooling pad system with large,high-performance and 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 2. Extremely heavy-duty construction of the cooling pad to afford any weight or pressure put-on 3. Power source supported easily by the plug-and-play USB connection as a self-power mode 4. Convenient,reliable and comfortable to carry 5. No need for any installation 6. Compatible with any notebook computers 7. Dimensions:300 x 235 x 52.7 mm(L x W x H) Tated Voltage:DC5V