USB 2.0 Extension cable 20M, Cystal blue design, Gold-plated interface,antioxidant,Corrosion resistance Features:1.Usb specification 2.0 ... 20m Extension cableModel NoDT-5028Length20mColorTransparent crystal blue PVCFunctionConnect usb devices as long as 20mChipsetTaiwan original chip Working ... /WIN7/Mac system or higherAccessories5v power 20m USB 2.0 Extension cable,usb A male to usb A female cable