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2015 iMac as a display for a 2018 MacBook Air with Retina?

Can I use a 2015 imac as a display for a 2018 MacBook Air with Retina? What is the cheapest way to do this? The thunderbolt adapter is $50, and I'd like to spend less if possible. Thank you!

MacBook Air 13″, macOS 10.12

Posted on Sep 17, 2021 7:07 AM

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Question marked as Top-ranking reply

Posted on Sep 17, 2021 8:38 AM

+1 the 2015 iMac will not work. Please refer to Use your iMac as a display with target display mode - Apple Support and you will see TDM is dead.


If your MBA needs an external display, please buy one. This is a more reliable, less expensive (does not require expensive cabling) and easier solution than TDM ever was. You can easily find external displays that begin at <$100.


Good luck.

2 replies
Question marked as Top-ranking reply

Sep 17, 2021 8:38 AM in response to Naomi_99

+1 the 2015 iMac will not work. Please refer to Use your iMac as a display with target display mode - Apple Support and you will see TDM is dead.


If your MBA needs an external display, please buy one. This is a more reliable, less expensive (does not require expensive cabling) and easier solution than TDM ever was. You can easily find external displays that begin at <$100.


Good luck.

2015 iMac as a display for a 2018 MacBook Air with Retina?

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