Newsroom Updates

> Introducing Apple Intelligence for iPhone, iPad, and Mac

> macOS Sequoia takes productivity and intelligence on Mac to new heights

Connect two 2017 iMacs through thunderbolt 3

Is it possible to use a 2017 21.5 as the secondary monitor to a 2017 21.5 retina 4k. I am aware you can share a mouse and keyboard between the two, but I'm unable to drag windows from one screen to the other. I've only found 1 video stating to connect a thunderbolt 2 to a thunderbolt 3 by selecting CMD F2 on the 2nd keyboard but this doesn't appear to work for two thunderbolt 3 connectors. Any help is appreciated.

iMac 21.5″, macOS 13.1

Posted on Jul 15, 2023 1:06 PM

Reply

Best reply

Level 4

1,239 points

Posted on Jul 15, 2023 9:43 PM

Here’s the article on Target Display Mode:

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

This only worked for older iMacs, and on systems on High Sierra or earlier.

Your hardware is too new for this, unfortunately.

View in context

Similar questions

1 reply

Best reply

Level 4

1,239 points

Jul 15, 2023 9:43 PM in response to HouseOfThomas

Here’s the article on Target Display Mode:

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

This only worked for older iMacs, and on systems on High Sierra or earlier.

Your hardware is too new for this, unfortunately.

Reply

Connect two 2017 iMacs through thunderbolt 3

Welcome to Apple Support Community

A forum where Apple customers help each other with their products. Get started with your Apple ID.

Learn more Sign up