-
All replies
-
Helpful answers
-
-
Sep 18, 2015 5:44 AM in response to Desboyzby den.thed,As stated no, at least not using Target Display Mode because your 2009 21.5" iMac does not support Target Display Mode.
see > Use your iMac as a display with Target Display Mode - Apple Support
Another option to explore might be > http://www.screenrecycler.com/ScreenRecycler.html