Features:
1) Four-port USB hub   
2) Version 1.1/2.0  available  
3) Full plug-and-play capability  
4) Hot-swapping capability           
5) The end of  the  three USB interfaces are freely  rotate 300-degree angle
6) Full power: 5V DC, 500mA and over-current protection function  
7) Compatibility: Windows 98 SE or above and Mac OS 8.6 or above 

DIMENTION :23x23x100MM  
N.W:7KGS  G.W:8KGS  
QTY:100PCS/CTN  
MEAS:44x42x28CM