richardtit Author

Level 1

4 points

Connecting a mid-2010 iMac to a 2020 IMac as an external monitor

What cords do I need to use the old Imac as a 2nd monitor to the newer Imac

Posted on Dec 7, 2022 9:45 AM

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1 reply

Level 10

89,374 points

Dec 7, 2022 10:01 AM in response to richardtit

That will not work because the 2020 iMac does not support Target Display Mode.

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

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Connecting a mid-2010 iMac to a 2020 IMac as an external monitor

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