BSTUO 4-Port ABS USB2.0 / Wireless Charger for Smartphone - BlackUSB Hubs &amp; Switches<br>Form  ColorBlackQuantity1 DX.PCM.Model.AttributeModel.UnitMaterialABSShade Of ColorBlackIndicator LightYesPort Number4Spacing1.3 cmCurrent Output2.1AWith Switch ControlNoInterfaceUSB 2.0Transmission Rate480 DX.PCM.Model.AttributeModel.UnitPowered ByAC ChargerSupports SystemWin xp,Win 2000,Win vista,Win7 32,Win7 64,Win8 32,Win8 64,MAC OS X,IOS,Android 2.x,Android 4.xPacking List1 * 4 Ports USB wireless charger<br>