1.Number of porst:1(input)7(output)                            
2.Transferspeed:480Mbps(USB2.0/HS),12Mbps(USB1.1/FS)1.5Mbps(USB1.1/LS)                                                    
3.Current consumption:500mA                                               
4.Features :lndividual power light indicator                                   5.Dimension:W83xD43xH11mm                                          
6.Remarks: Power adapter/Extra 1.0m USB cable affached
7.without power adaptor.