You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Connect to imac to have dual screen computer

Hi, i have 2 imac 21.5 inch 2017, and I want to use them as a single computer with dual screen.

how do I connect the 2nd imac screen to make it a second screen? Which cable do I need? Thanks

Posted on Jul 31, 2020 6:50 AM

Top-ranking reply

Level 10

174,000 points

Posted on Jul 31, 2020 7:15 AM

you can't, target display is no more after 2014

there are software that can do it wireless but the performance is likely subpar

View in context

Similar questions