macOS Big Sur -Version 11.7.10 (20G1427)
iMac (Retina 5K, 27-inch, Late 2014)
Processor-3.5 GHz Quad-Core Intel Core i5
Memory-8 GB 1600 MHz DDR3
Graphics-AMD Radeon R9 M290X 2 GB
SN#-C0******11
[Edited by Moderator]
iMac 27″, macOS 11.7
+1
If you have or are considering a new Mac mini, then you need an external display.
see > Connect a display to Mac mini - Apple Support
For help choosing the right Mac for your needs and budget.
You say that you have a Mac (Retina 5K, 27-inch, Late 2014). Target Display Mode went away when that Mac – the first Retina iMac – came out. Apple later added restrictions such that no current Mac supports using any iMac as a Target Display.
Reference: Use your iMac as a display with target display mode - Apple Support
If you are asking if you can use your iMac as a monitor for your new mini, the short answer is "No".
You'll need to buy a proper monitor for the Mac mini.
the good news though is that an imac even if acting as display for another mac would be using a lot! more power than a normal "real" monitor
Is my IMac (details below) compatable with Mac Mini
