Can I use a new Mac mini as the operating system for my 2009 iMac?

I have a 2009 iMac that no longer supports updates. Can I purchase a new Mac Mini and use that as the new operating system for my 2009 iMac?




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Original Title: Can a

Posted on Nov 19, 2025 8:08 PM

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Posted on Nov 19, 2025 9:23 PM

No, if you get a new Mac mini you will need an external display, keyboard and mouse.

see > Connect a display to Mac mini - Apple Support

and > Set up your Mac mini - Apple Support


Then after you setup and migrate to the new Mac mini, you can recycle or re-purpose the old iMac.

see > What to do before you sell, give away, trade in, or recycle your Mac - Apple Support

and > Transfer to a new Mac with Migration Assistant - Apple Support

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Question marked as Top-ranking reply

Nov 19, 2025 9:23 PM in response to maddogkm24

No, if you get a new Mac mini you will need an external display, keyboard and mouse.

see > Connect a display to Mac mini - Apple Support

and > Set up your Mac mini - Apple Support


Then after you setup and migrate to the new Mac mini, you can recycle or re-purpose the old iMac.

see > What to do before you sell, give away, trade in, or recycle your Mac - Apple Support

and > Transfer to a new Mac with Migration Assistant - Apple Support

Nov 20, 2025 5:26 AM in response to maddogkm24

maddogkm24 wrote:

I have a 2009 iMac that no longer supports updates. Can I purchase a new Mac Mini and use that as the new operating system for my 2009 iMac?


That question does not make sense. A Mac mini is a computer – not an operating system.


If by any chance, you are asking about Target Display Mode, that probably won't work. Although some 2009 iMacs (24" and 27" models – but not 21.5" ones) support Target Display Mode using Mini DisplayPort input, Apple added restrictions such that no recent or current Macs support using any iMac as a Target Display.


See the bad news here: Use your iMac as a display with target display mode - Apple Support

Can I use a new Mac mini as the operating system for my 2009 iMac?

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