iMac (27-inch, Mid 2011) running by macOS Sierra Ver. 10.12.6, to use as a Monitor for MacBook Pro (15-Inch, 2018) By USB-C port (TB3) to Thunderbolt 2 port connecting. Will it work ?

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shmulik2005 Author

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iMac (27-inch, Mid 2011) running by macOS Sierra Ver. 10.12.6, to use as a Monitor for MacBook Pro (15-Inch, 2018) By USB-C port (TB3) to Thunderbolt 2 port connecting. Will it work ?

iMac (27-inch, Mid 2011) running by macOS Sierra Ver. 10.12.6, to be use as a Monitor

for MacBook Pro (15-Inch, 2018) running by macOS Catalina Ver. 10.15.5.

Connecting them from USB-C port (TB3) on MacBook Pro to Thunderbolt 2 port on iMac.

Will it work ?

By TB3 to TB2 Adaptor + TB2 (Thunderbolt) cable ?

Any other connecting options ?

Thanks

iMac 27″, macOS 10.12

Posted on Nov 9, 2020 8:04 AM

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Answer 1

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BDAqua

Level 10

250,259 points

Nov 9, 2020 3:36 PM in response to shmulik2005

According to Apple yes...

You can connect any of these older iMac models to another Mac from 2019 or earlier for use as an external display. Learn how to identify your iMac model.

27-inch iMac models introduced in 2009 and 2010: Use a Mini DisplayPort cable to connect your iMac to a Mini DisplayPort or Thunderbolt or Thunderbolt 2 port on the other Mac.
All iMac models introduced in 2011, 2012, 2013, and mid 2014: Use a Thunderbolt cable to connect your iMac to a Thunderbolt or Thunderbolt 2 port on the other Mac. If the other Mac uses Thunderbolt 3, you can use the Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter with your cable.

Target display mode requires macOS High Sierra or earlier on the iMac used as the external display. It does not work with macOS Mojave or later.

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