Tech Tip: How to Boot and Use a Mac in Target Disk Mode
Target Display Mode: Using an iMac as a monitor - YouTube
DIY Apple Studio Display uses 2014 iMac to save $730 | Ars Technica
Incase anyone ever needs the answer…I have a 27” 2010 iMac working in Target Display Mode with a M1 MacBook Pro using a miniDP to USB C adaptor that's capable of 4k60Hz.
Luna Display Gains PC-to-Mac Mode, 5K Support and More | MacRumors Forums
TARGET DISPLAY MODE - FIX - MINI DISPLAY PORT 2009-2017 - YouTube
Using second iMac as monitor - can I still access its drive? | MacRumors Forums
Use iMac as monitor: 5 Solutions - 9to5Mac
How To Use an iMac as a Monitor for a PC
Troubleshooting tips for using an old iMac as an external display for a Thunderbolt 3 Mac | Macworld
How to Use Your iMac in Target Display Mode - YouTube
Luna Display's powerful Target Display Mode feature for Mac adds Ethernet and Thunderbolt support - 9to5Mac