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I am able to connect one monitor to my imac via usb-c second monitor does not connect. what do I need to do in order to connect a second monitor for 3 screen setup?

How do I connect a second monitor for a 3 screen setup with a new M1 IMAC?


iMac 27″, macOS 12.6

Posted on Mar 12, 2023 10:52 AM

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Question marked as Top-ranking reply

Posted on Mar 12, 2023 10:59 AM

The M1 iMac supports only one external display.


Video Support

Simultaneously supports full native resolution on the built-in display at 1 billion colors and:

  • One external display with up to 6K resolution at 60Hz


iMac 24-inch - Technical Specifications - Apple


4 replies

I am able to connect one monitor to my imac via usb-c second monitor does not connect. what do I need to do in order to connect a second monitor for 3 screen setup?

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