The Targus Stow-N-Go Chill Mat helps cool up to 15.6" laptops. The width of the device conveniently expands and contracts for easy travel. The height can also be adjusted to create an ergonomic workspace while providing optimal airflow during use. The non-skid surface provides added stability while the whisperquiet fan cools the laptop. The Stow-N-Go Chill Mat is USB powered and requires no additional power to operate. The built-in cable storage feature protects the cable and provides added portability.