How to See Thunderbolt and USB4 Device Information on a Mac

3
Apple MacOS Thunderbolt Bus 0 Anker 778 Connected
Apple MacOS Thunderbolt Bus 0 Anker 778 Connected

A few days ago, we had our Anker 778 Thunderbolt 4 Dock Mini-Review. As part of that, we got a good question, which is, how can you see a Thunderbolt device that is connected to an Apple Mac? Luckily, this is a simple one and excellent for a Merry Christmas post.

How to See Thunderbolt and USB4 Device Information on a Mac

Starting off, you would go to the Apple Menu in the top left corner, then go to About This Mac, and then click on More Info, which should bring up System Information. Alternatively, you can just search for “System Information” in the find function, and you can get to this faster. From here, there is a Thunderbolt section under Hardware.

Apple MacOS Thunderbolt Bus 0 Nothing Connected
Apple MacOS Thunderbolt Bus 0 Nothing Connected

The above is empty, but we can add a device, like that Anker 778.

Anker 778 Rear Many Ports
Anker 778 Rear Many Ports

Once we do that, you can go to File then Refresh Information and it will show the newly connected device.

Apple MacOS Thunderbolt Bus 0 Anker 778 Connected
Apple MacOS Thunderbolt Bus 0 Anker 778 Connected

There will also be the Anker 778 in our case underneath Bus 0. Depending on which port you are plugged into you may get different capabilities. This one we can see is running in USB4 mode right now which is more than ample since we do not have anything else installed.

Apple MacOS Thunderbolt Bus 0 Anker 778
Apple MacOS Thunderbolt Bus 0 Anker 778

Here is the Realtek NIC on the Anker 778 that we can see is a 1GbE NIC connected via an internal USB 3 5Gbps port. Instead of being under Thunderbolt, this shows up under Hardware Ethernet.

Apple MacOS Thunderbolt Anker 778 Realtek NIC
Apple MacOS Thunderbolt Anker 778 Realtek NIC

We put a Samsung T7 Shield on the dock, and it mounted without issue, but it is found under Hardware Storage.

Apple MacOS Thunderbolt Anker 778 Samsung T7 Shield
Apple MacOS Thunderbolt Anker 778 Samsung T7 Shield

It is as easy as that.

Final Words

This is just a quick one since it is always useful to see what is connected. On the Windows side, you can see this information in Device Manager as well, but on Apple Mac systems it makes more sense since it is more organized. I hope this quick guide helps someone in the future.

If STHers have not picked up on this, I am the new guy, and will have more tutorials in 2025. Patrick’s out unexpectedly since his puppy went to the ER and puppy hospital today. Christmas prayers for the little dog.

3 COMMENTS

  1. There’s a better way to get at it: Hold down the option key, then go to the Apple menu (or vice versa, either way works). The first choice changes from “About his Mac” to “System Information…”.

  2. Oops, “About This Mac”.

    BTW, this display does not update live. If you move things around and want to see the new reality, hit command-R.

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