Protect and cool down your notebook !Two fans enable to evacuate the warmness on the side and your laptop can cool down.- Modern design- No need of driver- Easy to use. No need of transformer- Connection via USB portCharacteristics :Power : 5V2 warmness evacuation speeds : Max. 2.0w / Min. 1.2wSize: 300 x 230 x 13,8mm (L x W x D)USB cable: 300mm longDelivered with:1 cooling pad for notebook / laptop1 USB cable