1. Adds 4 USB Hi-speed ports
2. Supports up to 127 Hi-speed devices
3. Individual port over-current protection
4. Friendly & ergonomic design, easily protection
5. Provides up to 500mA to each port sufficient for diverse devices
6. Power adapter (selected 5V/2.1A output)
7. Plug &Play installation
8. Supports Mac OS8.6 or above
9. Hi-speed downstream ports with USB A female connectors
10. 1 Hi-speed Upstream port with Mini USB 5P Jack
11. USB 1.1
12. USB 2.0, backwards compatible with USB 1.1/1.0. Supports data transfer rate at 480 Mb/s