1. Innovation Design, Ideal office adornment & Gifts. 2. Three LED lights 3. Both cell battery and USB port powered 4. Folding design 5. Adds 4 USB Hi-speed ports 6. Supports up to 127 Hi-speed devices. 7. Individual port over-current protection 8. Friendly & ergonomic design,easily protection 9. Provides up to 500mA to each port sufficient for diverse devices 10. Plug&Play installation 11. USB 2.0, backwards compatible with USB 1.1.Supports data transfer rate at 1.5/12/480 Mb/s