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Level 1

4 points

Use iMac as second monitor with MacBook Pro 2020

I have a MacBook Pro 2020 (macOS Catalina) and want to use my older iMac (2011, macOS Sierra) as a second Monitor. I've connected the two devices with a Thunderbolt cable and Thunderbolt 3 (USB-C) to Thunderbolt 2 adapter (to connect it to my MacBook). When I press cmd + F2 (or cmd + FN + F2) nothing happens, also the monitor isn't recognized when I go to my monitor settings. Any advice?

MacBook Pro

Posted on Jan 6, 2021 12:53 AM

Best reply

dialabrain

Level 10

122,891 points

Posted on Jan 6, 2021 3:23 AM

A 2020 MBP is too new.

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

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

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Use iMac as second monitor with MacBook Pro 2020

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