Speed over Microsoft's Proprietary Connector

[Blake Fasse]

I'm here to settle an arguement with a friend of mine. My friend says that the speed over MS's proprietary connector would be fast enough for USB 3.1 Type C/Thunderbolt 3 so they would just be able to add it to the Surface dock but I disagree. Anyone willing to shed some light on this issue?

 

[basroil]

1) The connector isn't an issue, if you put 4xPCIe over it (has enough pins) you could run a graphics card or USB3.1
2) The controller IS an issue, and you will not see formats that Microsoft didn't plan on running though the output.
3) The port already uses a proprietary form of "Thunderbolt" to provide USB3, gig-E, and 2x4K displayPort capability (in daisy chain)

They will never add USB3.1 C or Thunderbolt3 to the Surface Pro 3/4 though, since it would require new controller chips (and certainly not 20V 5A output, since the battery is much lower voltage) if it's not already in there (and iFixit says there are no such chips)

 

[Blake Fasse]

So it's fast enough but it just can't be used that way