This article refers to Thunderbolt 1 and Thunderbolt 2. You can learn more about Thunderbolt 3 and the Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter for MacBook Pro (2016 and later) and iMac (2017).
Thunderbolt adapters are supported on the following Mac computers:
I have a Retina MacBook Pro with Mountain Lion and Boot Camp with Windows 7 and the Boot Camp 4.0 drivers. I'm also using the Thunderbolt to Ethernet adapter. My problem is that my ethernet port (aka wired connection) is not available in Windows' Control Panel Network & Internet Network Connections. Only Bluetooth and Wireless are available. So your adapter has its own MAC address, as does the the network interface in a Thunderbolt display, and the Wi-Fi in your MacBook Air. Different Thunderbolt to Ethernet adapters will have different MAC addresses, but moving one between different ports won't change it. You can view the MAC address of any network interface attached to your Mac.
Use these guides to identify your Mac computer:
Apple Thunderbolt cable (0.5 m)
Part Number MD862ZM/A
Apple Thunderbolt cable (0.5 m)
Part Number MF640ZM/A
Apple Thunderbolt cable (2 m)
Part Number MC913ZM/A
Apple Thunderbolt cable (2 m)
Part Number MF639ZM/A
Thunderbolt to Gigabit Ethernet Adapter
Part Number MD463ZM/A
Thunderbolt to FireWire Adapter
Part Number MD464ZM/A
For best performance, make sure that you've installed all available macOS software and firmware updates. You can check by choosing App Store from the Apple () menu, then clicking Updates.
Get more information on Thunderbolt and Apple Thunderbolt cables and adapters:
The adapters and cables in this article work with these Mac computers and iPad Pro devices:
To find the right cable or adapter for your Mac or iPad Pro, use the information below to identify the connector on the end of the cable coming from your display, hard drive, camera, hub, or other device. Check the end meant to plug into your Mac or iPad Pro.
Thunderbolt 3
If you're using an Apple Thunderbolt 3 cable or other Thunderbolt 3 cable with your display or other device, it will connect to your Mac without an adapter.
The Apple Pro Display XDR and LG UltraFine 5K Display use Thunderbolt 3.
USB-C
If you're using a mophie USB-C Cable with USB-C Connector or other USB-C cable with your device, it will connect to your Mac or iPad Pro without an adapter.
The LG UltraFine 4K Display uses USB-C.
USB-A
If you're using a USB-A cable with your device, use the Apple USB-C to USB Adapter, the Apple USB-C Digital AV Multiport Adapter, the Apple USB-C VGA Multiport Adapter, or another USB-C to USB-A adapter to connect your device to your Mac or iPad Pro.
To charge an iPhone, iPad, or iPod touch from a Thunderbolt 3 or USB-C port without one of these adapters, you can use the Apple USB-C to Lightning Cable instead.
Ethernet
If you're using an Ethernet cable with your device, use a third-party USB-C to Ethernet adapter, such as the Belkin USB-C to Gigabit Ethernet Adapter.
Thunderbolt or Thunderbolt 2
If you're using a Thunderbolt or Thunderbolt 2 cable with a Thunderbolt display or other device, use the Apple Thunderbolt 3 to Thunderbolt 2 Adapter.
This is the correct adapter for the Apple Thunderbolt Display.
Thunderbolt and Thunderbolt 2 are not the same as Mini DisplayPort . They have the same shape, but use different symbols on the cable and port.
Mini DisplayPort
If you're using a Mini DisplayPort cable with a Mini DisplayPort display, use a third-party USB-C to Mini DisplayPort adapter. Check with its manufacturer for compatibility with your Mac and display model.
This is the correct solution for the Apple LED Cinema Display.
Mini DisplayPort is not the same as Thunderbolt or Thunderbolt 2 . They have the same shape, but use different symbols on the cable and port.
DisplayPort
If you're using a DisplayPort cable with your display, use a third-party USB-C to DisplayPort adapter or cable, such as the Moshi USB-C to DisplayPort Cable.
HDMI
If you're using an HDMI cable with your display, use the Apple USB-C Digital AV Multiport Adapter or a third-party USB-C to HDMI adapter or cable.
VGA
If you're using a VGA cable with your display, use the Apple USB-C VGA Multiport Adapter. Or use a third-party USB-C to VGA adapter, such as the Belkin USB-C to VGA Adapter.
DVI
If you're using a DVI cable with your display, use a third-party USB-C to DVI adapter or cable. Check with its manufacturer for compatibility with your Mac and display model.