1x Thunderbolt 3 To Thunderbolt 2 Adapter Type C Cable USB For Macbook Air Pro It can only be a one-way adapter. It can Thunderbolt 3 (USB-C) device to For macOS Sierra with Thunderbolt or Thunderbolt 2,or later Feature: 1. The latest USB 3.1 Type C interface can be used in both forward and reverse directions. 2. Perfect realization of miniDP video multi-function application; 3. High-performance digital chip processing; 4. Product input: USB 3.1 Type C (DP mode) 5. Product output: MINIDP 6. Operating environment: 0 to 65 , relative humidity: 5% to 95% [Product application] Widely used: the latest generation of laptops, mobile phones, tablets, etc. with USB 3.1 Type C (DP mode) interface are connected through this conversion line and converted into MINIDP multi-function application output. Fits: For MacBook Air (Retina, 13 inches, 2018 and later) For MacBook Pro (13 inch, 2016 and later) For MacBook Pro (15 inch, 2016 and later) For IMac (Retina 4K, 21.5 inches, 2019) For IMac (Retina 4K, 21.5 inches, 2017) For IMac (Retina 5K, 27 inches, 2019) For IMac (Retina 5K, 27 inches, 2017) For IMac Pro (2017 and later) For Mac mini (2018) Package Included: 1 x Adapter