Features:
1) Adopt the second age USB controller
2) Driverless, hot plug and play
3) Internet over current protection circuits
4) Very attractive and stylish appearance
5) Designed with super streamlined USB
6) Support: Windows 9X, Linux2.4 and Mac OS 8.5 or over version
7) Chains up to 127 USB drivers
8) Available in various colors
9) Expand four USB ports, supply up 500m acurrent per port
10) No external power supply
11) Full speed up to 12Mbps
12) Support USB 1.0/1.1, compatible USB 2.0