How can I use my 2017 vintage iMac as a second monitor for a new M4 Mac mini?
How can I use my 2017 vintage iMac as a second monitor for a new M4 Mac mini? The iMac is has a quad core intel chip, running Ventura OS
Your systems are too new to use Target Display Mode:
Use your iMac as a display with target display mode - Apple Support
There are third-party solutions such as Luna Display, but they are only suited for uses where there will not be fast motion and where lag time is not an issue, such as for tool palettes for an app. I think you'd be happiest just buying a new monitor.
Regards.
