With the USB-C to USB adapter, you can connect your iOS devices and many common USB accessories to a MacBook with a USB-C port. Connect the end of the USB-C adapter to the USB-C port of your MacBook to attach your flash drive, camera, or other common USB devices. The USB cable can also be used to sync and charge iPhones, iPads, or iPods. Use the USB-A port of this adapter with flash drives, cameras, USB hubs, and other devices that require data transfer or charging via USB-A. It supports data transfer rates of up to 5 Gbit/s (USB 3.1, 1st generation).