SpeciFIcation:
Model GU3020A  
Input Interface  Micro USB 3.0  
Outup In Terface  4-Port USB 3.0 A type  
Led Indlcation  Power LED  
OperatingEnvironment   Working:0-50oC.Storage:-20-70oC  
System Requirement  Windows Xp/Vista/7/8, Mac OS, Linux  
Dimension  68*51.5*11.3(mm)  
Weight  85g  
Marerial  Plastic  

Features:
1.   Super slim design.
2.   Four ports USB3.0, external equipment, plug and play, easy to use 
3.   Build-in current protection 
4.   USB3.0 cable supply each port up to 900mA MAX. USB to DC cable can be used as a current enhancement
5.   Front cover mirror effect 
6.   Support USB3.0 to Sata interface. USB3.0 with high speed up to 5Gbps. Backward with USB2.0 and USB1.1.
7.   Hot-swap 
8.   Individual LED indicator of each port