... Extension cable 20M, Cystal blue design, Gold-plated interface,antioxidant,Corrosion resistance Features:1.Usb specification 2.0 compliant,2.Support full ... mangement7.Supports 3.3 V,5.0V BrandDTECHNameUSB 20m Extension cableModel NoDT-5028Length20mColorTransparent crystal blue PVCFunctionConnect usb devices ... or higherAccessories5v power 20m USB 2.0 Extension cable,usb A male to usb A female cable ...