Use this adapter cable to connect devices with usb type c interface eg smartphone tablet notebook with your existing usb micro b cable to the pc or usb charger the cable can be used for synchronisationdata transmission as well as for charging allows a reliable and fast connection of external usb devices with the pc 3a power supply type c connector can be used on both directions high speed usb data transfer rate up to 480 mbps downward compatible to usb 20 and 11