1.Adds 4 USB 2.0 HI-Speed ports

2.Fully Compliant with USB 2.0 Specification

3.Supports up to 127 Hi-Speed devices

4.Backwares Compatible with USB1.1

5.Support data transfer rete at 1.5/12/480 Mb/s

6.Individual Port Over-Current Protection

7.Friendly &ergonomic desigs,easily Protection

8.Provides up to 500 mA to each port sufficient for diverse devices

9.Power Adapter (selected 5 V/2.1A Outpur)

10.Plug &Play installation

12.Supports Mac OS 8.6 or above

13.Hi-Speed Downstream ports with USB A Femate connectors