What isTarget Display Mode

Target Display Mode (TDM) is an iMac feature that allows its screen to be used as an external monitor for another computer. However, to use this feature, you need an iMac with Thunderbolt, and for PC, it should be connected via Thunderbolt only.

How to use Target Display Mode on iMac?

To use TDM, connect the iMac to another computer via Thunderbolt cable, then start the iMac in TDM by pressing the Command + F2 keys. The iMac will then function as an external monitor for that computer.

Can you use Target Display Mode on older iMacs?

Yes, you can use previous Mini DisplayPort-based iMacs as an external display by using the proper converter cables and connecting them through Mini DisplayPort, Thunderbolt, HDMI, and DVI.

What are the benefits of using Target Display Mode?

TDM can be helpful for users who need multiple screens for their work without having to purchase an additional monitor. It can also be useful for those who want to use their iMac as a monitor for gaming or watching videos on a larger screen.


Target Display Mode (TDM) is a useful feature for iMac users who require multiple screens without additional investment. Although it is available only for Thunderbolt-based iMacs, with the help of the proper cable, users can use previous models as well. The feature is easy to use, and by pressing Command + F2 keys, you can start using your iMac as an external monitor.


1. Is Target Display Mode available for all iMacs?

No, it is available only for iMacs with Thunderbolt.

2. What to do if target display mode is not working?

If TDM is not working, make sure both devices are connected properly and turned on. Try restarting both devices and use a different cable if possible.

3. Can you use an iMac as a monitor for a gaming console?

No, iMacs are not compatible with gaming consoles.

4. Is there any limit to the resolution while using Target Display Mode?

Yes, the resolution will depend on your iMac model and the connecting device, and it may vary from model to model.

5. Can you use TDM wirelessly?

No, TDM requires a wired connection.

Get help with your Mac

We hope this article helped you understand Target Display Mode on iMac. However, if you are still facing any issue with your iMac or Mac, feel free to contact our technical team for further assistance.

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