With the USB ‑ C to USB adapter you can use iOS devices and many common USB  Accessory devices with a USB-C or Thunderbolt  3 Connect a (USB-C) capable Mac.
 Connect the USB-C end of the adapter to a USB-C or Thunderbolt  3 (USB-C) port on your Mac. And then connect a flash drive, camera or other standard USB  Device on. With a Lightning to USB cable you can also sync and charge your iPhone, iPad or iPod.