can I connect a Mac mini to my iMac (21.5 inch mid 2010 model) and use it as my monitor?
can I connect a Mac mini to my iMac (21.5 inch mid 2010 model) and use it as my monitor?
I am thinking of purchasing a Mac mini
Question marked as
If you're talking about a newer model Mini then no, it is too new because it will be running something later than Catalina and cannot be downgraded.
Review the document: Use your iMac as a display with target display mode - Apple Support
Target display mode is a feature available with late 2009-Mid 2014 iMacs. The display Mac has to be running macOS High Sierra or older and the signal producing Mac has to be running macOS Catalina (ca. 2019) or earlier.
