1. Expand 1 USB port into 4 USB ports, connect 4 devices simultaneously without creating a mess
2. Supports USB 2.0 transfer rates up to 480 Mbps
3. Supports hot-swap function and no driver needed
4. Support windows XP/vista/7/8.1, Mac OS X or above, Linux. Reverse compatible with USB 1.1
5. Stylish and compact design, a great companion of travelling. Never miss this super miniature and distinctive USB hub!