USB 2.0 Extension cable 20M, Cystal blue design, Gold-plated interface,antioxidant,Corrosion resistance ... power mangement7.Supports 3.3 V,5.0V BrandDTECHNameUSB 20m Extension cableModel NoDT-5028Length20mColorTransparent crystal blue PVCFunctionConnect usb devices as long ... /WIN7/Mac system or higherAccessories5v power 20m USB 2.0 Extension cable,usb A male to usb A female ...