Our Tri-Cool notebook cooling pad was designed to be the most portable cooling solution available in the industry today, while maintaining a rugged durable design. This sleek anodized aluminum housing was designed to travel within your laptop case, while taking on the tight constraints of airplane/car travel. Our triple fan design utilizes three 60mm whisper quiet fans and allows you to increase or decrease the flow of air with a single wheel. Notebook leg stands allow you to increase the space and increase the air flow from the base of you PC to the top of the cooling fan. Our USB bus powered designed requires no bulky AC adapter and is powered from an available USB port on your notebook computer. Black anodized aluminum. USB connector. Lifetime limited warranty.