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.

Secondary Screen

Is it possible to use a 2009 21.5” iMac as a secondary screen for a MacBook Air?

Posted on Aug 23, 2019 4:38 AM

Reply
Question marked as Top-ranking reply

Posted on Aug 23, 2019 5:30 AM

No. It requires a Late 2009 27" iMac.

Use your iMac as a display with Target Display Mode - Apple Support

1 reply

Secondary Screen

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.