I have an iMac (24-inch, M1, 2021) and a MacBook Air (M1, 2020). I’d like to extend my iMac’s screen onto the MacBook air.
What cable do I need to be able to do this?
iMac 24″, macOS 12.0
Since the late 2014 iMac, none of them can be used as a display.
Since early 2020, no Mac can connect to any Target Display Mode capable iMac.
So, out of luck.
While not being able to use as a display, if both Macs are running Monterey 12.3, you can move back and for from one Mac to another with a mouse or the trackpad with Universal Control.
One other option, depending on your usage, is Screen Sharing. You can view the MacBook Air as a window on the iMac via ethernet network.
Since the late 2014 iMac, none of them can be used as a display.
Since early 2020, no Mac can connect to any Target Display Mode capable iMac.
So, out of luck.
While not being able to use as a display, if both Macs are running Monterey 12.3, you can move back and for from one Mac to another with a mouse or the trackpad with Universal Control.
One other option, depending on your usage, is Screen Sharing. You can view the MacBook Air as a window on the iMac via ethernet network.
You cannot use target display mode on the new Macs
Hi!
Here is a useful link to how to connect them: Use your iMac as a display with target display mode - Apple Support
You will also need a Mini DisplayPort or Thunderbolt to Thunderbolt cable, but check the link to be sure.
Hope this helps!
How to connect a new iMac (24 inches) to a new MacBook Air for screen extension?
