Q: I have an iMac 27" (mid 2011) and would like to attach 2 thunderbolt displays to have a total of 3 screens. Will this setup be supported by my iMac?

I have an iMac 27" (mid 2011) and would like to attach 2 thunderbolt displays to have a total of 3 screens. Will this setup be supported by my iMac? Also, can I connect a cable set top box via an HDMI to thunderbolt adapt to one of the thunderbolt screens and watch cable tv on one of the screens?

iMac (27-inch Mid 2011), OS X Mountain Lion (10.8.2), Windows 7 with VM Ware 5.0.1

Posted on Mar 25, 2016 7:07 PM

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Q: I have an iMac 27" (mid 2011) and would like to attach 2 thunderbolt displays to have a total of 3 screens. Will this setup be sup ... more

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by Malcolm J. Rayfield,

Malcolm J. Rayfield Mar 26, 2016 12:32 AM in response to mahawley
Level 5 (7,945 points)

Mar 26, 2016 12:32 AM in response to mahawley

Yes, two Thunderbolt displays will work.
https://support.apple.com/HT204154

There is no way to connect a cable box to a Thunderbolt display, but you could connect the cable box to the computer with a video input unit and have the video displayed on any display.
Blackmagic makes a Thunderbolt video input unit.
https://www.blackmagicdesign.com/ca/products/intensity
To use HDMI you will need to removes HDCP. Some HDMI splitters will remove it.

Elgato game recorders may also work.
https://www.elgato.com/en/gaming
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Q: I have an iMac 27" (mid 2011) and would like to attach 2 thunderbolt displays to have a total of 3 screens. Will this setup be supported by my iMac?

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by Malcolm J. Rayfield,

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