The Rosewill RX358 USB 3.0 is an external drive enclosure that utilizes the speed of the latest technology in an extremely easy to use hot swap setup to serve all your backup and storage needs. And to show you what a massive difference that USB 3.0 makes, we'll be using a very fast Solid State Drive to show you not only how close USB comes to SATA II, but also how USB 2.0 is left behind in the dust.