If I buy a new Mac mini, can I connect it to an iMac (2017) as the display. If so, what is the best way to make the connection? The iMac has 4 USB 3.0 and 2 Thunderbolt (40 GPS) ports. I don’t want to have to buy a new monitor if I can use the perfectly good old iMac I already have.
iMac (2017 – 2020)
Unfortunately, that setup is not supported by Apple. The iMac cannot be used as a monitor for any of the newest Macs and Target Display mode is no longer a feature of macOS, having been deprecated several years ago.
Please see: Use your iMac as a display with target display mode - Apple Support
Per the link above:
• Your target iMac (monitor) must be using macOS High Sierra 10.13.6 or earlier.
• In all cases the source Mac that you're connecting FROM must have been introduced in 2019 or earlier and have macOS 10.15 Catalina or earlier installed.
However, you might consider a third-party solution, for example: Luna Display or Duet Display.
Unfortunately, that setup is not supported by Apple. The iMac cannot be used as a monitor for any of the newest Macs and Target Display mode is no longer a feature of macOS, having been deprecated several years ago.
Please see: Use your iMac as a display with target display mode - Apple Support
Per the link above:
• Your target iMac (monitor) must be using macOS High Sierra 10.13.6 or earlier.
• In all cases the source Mac that you're connecting FROM must have been introduced in 2019 or earlier and have macOS 10.15 Catalina or earlier installed.
However, you might consider a third-party solution, for example: Luna Display or Duet Display.
Connect iMac as display for Mac Mini
