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Just wondering can I connect my 13" MacBook Pro to 2 HDMI projectors? I would like to extend the displays ( 3 display, 1 laptop screen and 2 projector screen) instead of duplicating if that is possible.

I have purchased one of USB-C Digital AV Multiport Adapter from Apple, and if it can connect up to 2 additional extended displays, I will go for another one.

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According to Apple's Technical Specifications 13” 2017 MacBook Pro is able to support 2 external displays.

Simultaneously supports full native resolution on the built-in display at millions of colors and:

  • One display with 5120x2880 resolution at 60Hz at over a billion colours
  • Up to two displays with 4096x2304 resolution at 60Hz at millions of colours
  • Up to two displays with 3840x2160 resolution at 60Hz at over a billion colours

So, three total screens is a yes, four or more is a no. What’s undetermined is if you can run closed clamshell and have three distinct and active external displays and nothing on the internal display.

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    What a great collaboration for attributing this in a way that is not only clear, but hopefully durable for at least 3 to 5 years :)
    – bmike ♦
    Apr 20, 2019 at 17:34
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    The internal is never truly off. It always has a frame buffer allocated. The limitation is the number of memory apertures the GPU can handle...in this case 3.
    – Wilfred Smith
    Apr 22, 2019 at 1:18
  • Bill - I wasn’t aware of that detail. Want me to edit it in? Please feel free to edit my comment out or solidify what you know if I made things more uncertain than necessary.
    – bmike ♦
    Apr 22, 2019 at 2:39
  • Sure, Mike. Perhaps the clearest thing would be not mentioning clamshell mode though. Sometimes less is more. Apple phrases it as the built-in-display AND ( 1 5K or up to two 4K) monitors which also implies that the built-in is a fixed consumption resource.
    – Wilfred Smith
    Apr 22, 2019 at 2:46

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