"The Xclio Hovercraft is a pretty solid notebook cooler, providing strong cooling benefits as well as ergonomic benefits. The six fans allow for a good deal of airflow through the cooler and under the laptop. The Hovercraft can be powered through a USB port on either side of the cooler but cannot function as a USB HUB. While operating, the fans in the Hovercraft have a blue glow that is not very noticeable. The fans are a single color and cannot be changed to any other color."