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 / USB 4 or Thunderbolt 3 (USB-C) ports on your Mac. As a bidirectional adapter, it can also connect Thunderbolt 3 devices to a Mac with a Thunderbolt or Thunderbolt 2 port and macOS Sierra or later. Plus, 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 / USB 4 or Thunderbolt 3 (USB-C) ports on your Mac. Note: Using this adapter with an Apple Thunderbolt Display requires a power source, because the display does not provide power through the adapter. Please note that this adapter does not support DisplayPort displays such as the Apple LED Cinema Display or third-party DisplayPort and Mini DisplayPort displays. Compatibility with MacBook Air models: MacBook Air (M2, 2024), MacBook Air (M1, 2020), MacBook Air (Retina, 13-inch, 2020), MacBook Air (Retina, 13-inch, 2018 - 2019) Compatibility with MacBook Pro models: MacBook Pro (13-inch, M2, 2024), MacBook Pro (13-inch, M1, 2020), MacBook Pro (13-inch, 2020, Four Thunderbolt 3 ports), MacBook Pro (13-inch, 2020), MacBook Pro (14-inch, 2021), MacBook Pro (16-inch, 2021), MacBook Pro (16-inch, 2019), MacBook Pro (13-inch, 2016 - 2019), MacBook Pro (15-inch, 2016 - 2019)