Connect any 2.5? or 3.5? SATA/SATA II Hard Drive externally to your computer through an available USB 2.0 port. The Sabrent SATA-C35U Adapter is a caseless solution that makes swapping hard drives easier than ever before. Transfer data quickly and easily through USB 2.0 at speeds of up to 480Mbs and 52x CD-ROM speeds. Installation is simple and driverless, so this is a perfect solution for data transfers or data backup!