... 3.good for Macbook,Notebook,eBook from 7' to 17'. Laptop Cooler padBrand: TrendyMaterial:AluminiumColor:Black,Silver,Gray,Blue,Red,Pink ... the bottom of the notebook, increase air flow,Thus the laptop computers are cooling, heating element of internal temperature effectively keep ... .Using the USB interface design, no external power supply, no drivers, plug and play, with independent switches.