Features & Advantages
1Instantly extend the USB2. 0 port to your system
2 4 USB port version, connect your USB devices/peripherals/flash-drives anytime
3 USB2. 0 specification compliant
4Transfer Rate: High-speed up to 480Mbps; Full-speed (12Mbps), Low-speed (1. 5Mbps) mode

5Ture Plug & Play
5Compact size for mobility and travelling
6Require NO external power source, simply plug and use
7link up to 127 USB devices
8One upstream port and four downstream ports
9support Windows 95/ 98/ ME/ 2000/ XP, Mac OS 8. 6+, and Linux Kernal 2. 4. 0+