Description: 7 ports, Aluminum case,small and beautiful appearance, easy to carry, each power supply up to 500MA high-speed USB2.0 7 ports can be used at the same time, up to 480Mbps, and backward compatible with USB 1.1 / 2.0 Supports overload voltage and instantaneous current protection, effective protection of connected equipment and HUB itself. No driver needed, plug and play, support hot swapping Compatible with Windows 95/98/2000/2003 / ME / XP / Vista or Mac OS 8.1 or later (Windows 95/98 system need to install the driver) Specification: Material: aluminum alloy Size:Approx. 150*35*10mm and cable length 60cm Package Includes: 1 Piece 7 Ports USB 2.0 Hub