Can I connect a new Mac Mini to my iMac (27-inch, Late 2013) display?
Can I connect a new Mac Mini to my iMac (27-inch, Late 2013) display?
iMac 27″, macOS 10.15
No sorry, none of the new Mac’s including the Mac mini support using you Late 2013 iMac as a display in Target Display Mode.
carefully read > Use your iMac as a display with target display mode - Apple Support
If you go for a Mac mini, you will need to use an external display.
