A-szcxtop(TM) 3.5" USB 2.0 High Speed SATA Hard Drive Enclosure High Speed External Hard Drive Enclosure can instantly convert your 3.5" SATA hard disk drive to an external drive and provides a portable plug-and-play solution for both PC and Mac. The transfer rate is up to 480mb/sec via USB 2.0 connection. The external drive provides the portable storage space for your music, photo, video, and data file. Supporting OS: Windows XP / VISTA / 7, 98 and Mac OSX