usb3.0协议

usb3.0接口协议TheoriginalUniversalSerialBus(USB)wasdrivenbytheneedtoprovideauser-friendlyplugand-playwaytoattachexternalperipheralstoaPersonalComputer(PC).USBhasgonebeyondjustbeingawaytoconnectperipheralstoPCs.PrintersuseUSBtointerfacedirectlytocameras.MobiledevicesuseUSBconnectedkey