1 USB2.0 chip, real high-speed chip

2 (Hispeed) USB2.0 interface, the highest rate of theory can reach 480Mbps, and 

down compatible with 1.1/1.0 USB standard specifications

3. 4 USB2.0 downstream port with hot plug function

4 Over current protection function, supports the overload protection function, Safe 

and easy to use.

5 With work indicator. Cable length is 55cm.

6 working humidity: 90% - 10%

7 working voltage: 5V

8 working current: 500mA

7 working temperature: 75C - -20C

8 storage temperature: 85C - -40C

9 Dimensions: 9.5*3.5*2cm

10 support system: 95/98/2000/2003/ME/XP/Vista Windows or OS Mac 8.1 or more

 (95/98 Windows system to install driver)