1.USB 4-Ports Hub 1.1/2.0version                                  
2. USB hub powered and no external adapter is required.
3.Plug-and-Play,Driver is notrequired.                    
4.Support Window 98/2000/XP/Window7                       
5. Wide used for external storage devices,Scanners
 Printers,DVD Drives.CD-RM Drives,Digital  Cameras/Camcorder                                                       
6.CE and Rohs compliance, ideal for gifts or as promotionalitems........