The USB 3.0 4-Port Hub is compliant with USB 3.0 specification while also being backward compatible with the USB 2.0 specification. The USB SuperSpeed Hub allows for easy connection of up to 4 USB 3.0 devices to your computer, such as an MP3 players, digital cameras, or hard drives. The streamlined, sleek and compact design is the perfect solution for USB port expansion. The removable aluminum base can be hard-mounted to your desk. The hub easily slides from the base, and makes it convenient for travel as well.