The Apple Thunderbolt to Gigabit Ethernet Adapter is designed for Macs with Thunderbolt 1 or Thunderbolt 2 ports. It adds a wired RJ-45 Gigabit Ethernet connection supporting 10/100/1000BASE-T networking.
Key details:
- Compatible with older MacBook Pro, MacBook Air, iMac, and Mac mini models using Thunderbolt 1/2 ports
- Supports Gigabit Ethernet speeds up to 1 Gbps
- Plug-and-play with macOS/OS X
- Not directly compatible with modern USB-C / Thunderbolt 3, 4, or 5 Macs without an additional adapter


