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.

• The Thunderbolt 3 to Thunderbolt 2 Adapter from Apple converts a Thunderbolt 3 port on a system to a Thunderbolt 2 port, letting you use previous-generation devices on your new Thunderbolt 3 computer. This adapter supports external storage drives as well as Thunderbolt-capable (any version) displays.
• Converts Thunderbolt 3 to Thunderbolt 2
• Bi-Directional Design
• Reversible USB Type-C Connector