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.