The NexStar GX provides the next generation of external hard drive enclosures. More than conveniently allowing added storage, the NexStar GX increases expandability by integrating a powered USB hub. Using a specially designed SMART active/passive cooling system ensures that your drive stays cool and functioning optimally. The NexStar GX utilizes high speed USB 2.0, offering speeds up to 480 Mbps, 40 times the speed of USB 1.1! Smart and expandable, the NexStar GX is the ideal way to store and transfer your data.