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I want to use a late 2013 21.5" iMac as an additional display with my 2019 27" iMac. Can this be done and what do I need (cables, adapters)?

Posted on Jun 14, 2020 5:59 AM

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8 replies

Jun 14, 2020 8:38 AM in response to VP407

You can connect any of these older iMac models to another Mac from 2019 or earlier for use as an external display. Learn how to identify your iMac model.

Target display mode requires macOS High Sierra or earlier on the iMac used as the external display. It does not work with macOS Mojave or later.

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