Detailed Product Description
1. Expand four usb port, supply up to 550mA current per port
2. Adopt the second age usb controller
3. No external power supply
4. driveless, hot plug& play
5. Internal over current protection circuits
6. Support USB 1.0/1.1, comptible usb2.0, full speed up to 12mbps
7. Support: Win95 osr2/98se/me/2000/xp, linux2.4 and mac os8.5 or over version
8. Chain up to 127 USB drives