The USB-C to USB Adapter lets you connect iOS devices and many of your standard USB accessories to a USB-C- or Thunderbolt 3 (USB-C)-enabled Mac, iPad or iPhone.
Plug the USB-C end of the adapter into a USB-C or Thunderbolt 3 (USB-C) port on your Mac, iPad or iPhone, and then connect your flash drive, camera or other standard USB device. You can also connect a Lightning to USB cable to sync and charge your iPhone, iPad or iPod.