I have Lenovo Thinkpad T490 from work and I got my personal iMac 5k 2017. I have got a dell monitor and use that as my primary monitor and want to use iMac as secondary monitor.
I have installed windows 10 on iMac using Bootcamp. I wanted to find out if I can use any sort of cable to connect both. My laptop got HDMI, USB-c charging port.
I don’t use iMac as switching between windows and apple keyboard the buttons are different and get confusing, I want to use iMac as my second screen via cable.
So the question is can I and if so What cables do I need?
Best Answer
You can’t. The iMac doesn’t accept any video signal as input (the operating system doesn’t matter). This model iMac does not support Target Display mode.
There are a couple potential products to turn your Mac into a secondary display for another Mac
The last product that supported connecting from a PC to a Mac as a secondary display was Air Display 2, but has since been discontinued.