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Can my old iMac 2012 27" serve as second display with my new iMac 2020 27"? What adapter and cable do I need?

Can my old iMac 2012 27" serve as second display with my new iMac 2020 27"? What adapter and cable do I need?

iMac 27″, macOS 10.15

Posted on Dec 18, 2020 3:00 PM

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3 replies

Dec 18, 2020 9:11 PM in response to Malcolm J. Rayfield

However, in Apple Support Community, I saw the following message:


Sep 6, 2020 11:41 PM in response to edaggs

Use your iMac as a display with target display mode - Apple Support

"You can connect any of these older iMac models to another Mac from 2019 or earlier for use as an external display."

If your new computer is a 2020 iMac it can't use another iMac as a display.


Also, I checked my iMac 2020. In System Preferences -> Displays, there is no selection for "Arrangement". What should I do?


Thank you.


Can my old iMac 2012 27" serve as second display with my new iMac 2020 27"? What adapter and cable do I need?

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