The Super-Speed USB 3.0 Hard Drive Bridge is the most innovative and economic way to access any hard drive. Without any additional power sources, begin reading or writing to your 3.5in or 2.5in hard drive with the USB 3.0 interface. With more than one bridge, you can connect one on top of another to save room on your desk. The new USB 3.0 interface features maximum speeds of up to 5 Gbit/Sec, which is equivalent to more than 600 MB per second. Use the silicone protector to protect your hard drive from bump.