"The NexStar 3 SuperSpeed 2.5'' External Hard Drive Enclosure supercharges portable storage. The NexStar External Hard Drive Enclosure lets you take any 2.5" hard drive and unleash its full potential outside of the computer case. The NexStar 3 2.5" Enclosure retains the same mirror finish and aluminum casing as its 3.5" brother, as well as utilizing the new USB 3.0 transfer speeds."