TBT3-UDV - does non TB USB-C cable work? (5gbps/10gbps?)

I have a 6ft TB3 20gpbs cable, need 10 ft to connect two TB3 servers thru the dock. Will slower signal pass thru straight up USB-C cable?


Thanks for asking. Unfortunately no, Thunderbolt 3 devices likely won’t be detected at all, or possibly just won’t authenticate using a USB-C cable as the dock/host can identify if the cable is not a Thunderbolt 3 model. (This may vary slightly depending on the Windows host and Thunderbolt 3 driver version, but on Mac it definitely won’t work - and there will be an error popup message in the macOS notifications.)

For longer than 6ft, you might need to look into an active Thunderbolt 3 cable option. These are usually optical cables and aren’t affected by the distance like a copper based cable would be. These cables are usually “Thunderbolt 3 only” in that for USB-C devices, they’re limited to USB 2.0 speeds.

We haven’t tested a 10ft cable, but we’ve tested a 40Gbps 6ft active cable with good results. Unfortunately we don’t offer any active solutions at this time.

Please don’t hesitate to let us know of other questions!

Best wishes,
Joshua Henry
Plugable Technologies

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