The Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter lets you connect Thunderbolt and Thunderbolt 2 devices — such as external hard drives and Thunderbolt docks — to any of the Thunderbolt 3 (USB-C) ports on your MacBook Pro. As a bidirectional adapter, it can also connect new Thunderbolt 3 devices to a Mac with a Thunderbolt or Thunderbolt 2 port and macOS Sierra or later. In addition, it can be used to connect Thunderbolt-enabled displays — such as the Apple Thunderbolt Display and LG Thunderbolt 2 displays — to any of the Thunderbolt 3 (USB-C) ports on your MacBook Pro. However, using this adapter with an Apple Thunderbolt Display requires a power source, because the display does not provide power through the adapter. The Thunderbolt 3 (USB-C) to Thunderbolt 2 adapter lets you connect Thunderbolt and Thunderbolt 2 devices o any of the Thunderbolt 3 (USB-C) ports on MacBook Pro Can be used to connect Thunderbolt-enabled displays to any of the Thunderbolt 3 (USB-C) ports on your MacBook Pro Can also connect new Thunderbolt 3 devices to a Mac with a Thunderbolt or Thunderbolt 2 port and macOS Sierra or later ✨Smoke Free/Pet Free Home ✨Top Rated Seller ✨Fast Shipper ✨Reasonable Offers Welcome ✨Bundle likes to save on shipping!