On Thu, Jun 2, 2022 at 9:34 PM Tomasz Moń <desowin@xxxxxxxxx> wrote: > > How do I determine that the cable is non-Thunderbolt Type-C? > > I have tried with two different brands 1m USB Type-C cables that are > not advertised as Thunderbolt. Both cables are electronically marked > and 5A capable. When the docking station is connected using these > cables, it operates in Thunderbolt mode. As far as I can tell, the physical wiring of a "full-featured USB-C cable" and a "Thunderbolt cable" are exactly the same - see https://en.wikipedia.org/wiki/USB-C#Alternate_Mode_partner_specifications I could imagine that Thunderbolt cable might be produced / designed to have better quality (better shielding, reduced tolerances, et al), but apart from that ... ? https://www.usb.org/sites/default/files/D2T2-2%20-%20USB4%20Cable%20and%20System.pdf looks pretty, but I will not pretend to understand much of what is written there.