2.5in USB SATA External Hard Drive Enclosure w/ Integrated USB cable. The SAT2510SCB External Hard Drive Enclosure transforms any 2.5" SATA hard drive into a portable USB external hard drive. Designed to provide convenience and portability the hard drive enclosure features a built-on USB 2.0 cable and a durable yet lightweight aluminum construction that fits perfectly in your pocket or laptop bag when not in use. The enclosure supports up to 500GB maximum hard drive capacity. To simplify connection to the host desktop or laptop computer the enclosure can be powered through its built-on USB connection eliminating the need for an external power supply and having to find a suitable power outlet while making it easier to backup data or load stored files.