Distinguish between a plain Type-C port and a Thunderbolt 3 port

Question

Distinguish between a plain Type-C port and a Thunderbolt 3 port

小囧黄 1

The current computer has two Type-C ports, one is ordinary Type-C port, the other is Thunderbolt 3 ports.If a USB device is connected to this computer via Type-C, is there any way to know which Type-C port the device is plugged into?Sincerely hope to know the answer or train of thought, thank you very much!

小囧黄 1 Reputation point

2021-02-22T01:47:50.16+00:00

Anyone help?

1 answer

Your answer

小囧黄 1 Reputation point

2021-02-22T01:47:50.16+00:00

Anyone help?

Answer 1

AliceYang-MSFT 2,106

Hi,

Apologies for my delayed response.

I think product handbook of the computer should include description of which one is Type-C and which is Thunderbolt 3.

If the handbook doesn't include the information, we may need a Thunderbolt 3 device and connect it to the ports one by one. When it connects successfully, we can say that port is a Thunderbolt 3 port.

All Thunderbolt 3 is USB-C compatible
All USB-C is not Thunderbolt 3 compatible!

So a Thunderbolt 3 device is needed in this method. Please see, What’s the difference between USB-C and Thunderbolt 3?

Please note: Information posted in the given link is hosted by a third party. Microsoft does not guarantee the accuracy and effectiveness of information.

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小囧黄 1 Reputation point

2021-05-28T07:06:49.837+00:00

Hi,
Thank you for your reply!

It's a pity that we don't have any Thunderbolt 3 device.

After inserting the Type-C test instrument, we can only identify a com port in the device manager.

Please allow me to add the application scenarios ：
I have a test project here to test the computer’s Type-C port (a normal C port, a Thunderbolt 3 C port) function. The test instrument is plugged into the computer’s C port through a Type-C cable for testing, because the test program is aimed at Normal C port and Thunderbolt 3C port are tested in different programs, so I need to determine which port C is currently inserted after the test instrument is plugged into port C of the computer, and then I can call the corresponding test program.

Is there any other way to realize this port identification?

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Distinguish between a plain Type-C port and a Thunderbolt 3 port

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