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MST support with MAC OS

Does anybody know why Apple is not willing or uncapable to provide Multi Stream Transport to allow splitting displays?

MacBook Pro 13″, macOS 13.1

Posted on Apr 23, 2024 11:04 PM

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Posted on Apr 24, 2024 5:45 AM

to up to two fully-hardware accelerated displays on one port on a Mac, the Port, the cable, and the first device Dock or Display must be genuine ThunderBolt.


USB-C has only half the data conductors and therefore less than half the bandwidth, and two of today's displays can not be supported on USB.


The solution using the j5 Dock creates a "fake" display in software, and uses (or emulates) DisplayLink Software to support it. That solution can not provide full-motion Video, and using a mouse on that display may make you feel queasy.

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Question marked as Top-ranking reply

Apr 24, 2024 5:45 AM in response to Tendoron205

to up to two fully-hardware accelerated displays on one port on a Mac, the Port, the cable, and the first device Dock or Display must be genuine ThunderBolt.


USB-C has only half the data conductors and therefore less than half the bandwidth, and two of today's displays can not be supported on USB.


The solution using the j5 Dock creates a "fake" display in software, and uses (or emulates) DisplayLink Software to support it. That solution can not provide full-motion Video, and using a mouse on that display may make you feel queasy.

Apr 23, 2024 11:12 PM in response to Tendoron205

Tendoron205 Said:

"MST support with MAC OS: Does anybody know why Apple is not willing or uncapable to provide Multi Stream Transport to allow splitting displays?"

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Reportedly, Macs can use either 1 or 2 external displays, depending on the model. But, there is one official workaround for this that I use...


Based on personal experience...

Getting Multiple External Displays:

The J5 USB-C Dual HDMI Docking Station allows for more than two extra monitors. How so? Well, plug in a display projector the Mac using the USB-C Digital AV Multiport Adapter and then plug the J5 hub with 2 HDMI displays (one 4K), and then you'll have 3 external screens. It all mirrors and extends.

MST support with MAC OS

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