Siehe https://support.apple.com/en-us/HT207266

Using the adapter with your MacBook Pro (Late 2016)

You can use the Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter to connect your MacBook Pro (Late 2016) to these devices:
Apple Thunderbolt Display*
LG Thunderbolt-enabled Displays using the Thunderbolt input
Thunderbolt bus-powered devices
Thunderbolt self-powered devices
Mac computers that have Thunderbolt or Thunderbolt 2
Apple Thunderbolt to Gigabit Ethernet Adapter
Apple Thunderbolt to FireWire Adapter**
*The Apple Thunderbolt Display doesn't provide power through this adapter to your MacBook Pro (Late 2016).
**Support for Apple Thunderbolt to FireWire Adapter is limited to devices that require less than 10W of power.