Just add a drive and go. Ultra’s new portable, aluminum external hard drive enclosure features a USB 2.0 and eSATA interface and supports 2.5" SATA HDDs. The Ultra 2.5" external hard drive enclosure supports Windows XP, 2000, ME, Vista and Mac 10.0 and above. The aluminum body conducts heat away from the drive and keeps the drive running at maximum performance while protecting it from excess heat. This easy to use external hard drive enclosure is easy to use – it’s hot swappable, Plug and Play. Lay it down or stand it up. No matter how you use the Ultra aluminum enclosure, it will meet and exceed industry standards. No need for extra cables. The enclosure is powered through the provided USB cable.