Curious if anyone out there is knowledgeable on this connectivity option on the Precision line of workstations. There isn't a lot of information out there on this optional add-in card.

Theoretically, would it be possible to connect an external HDD via USB-C to DisplayPort Daughterboard port on the machine and use that as a drive? I know DP supports such connectivity via the DP AUX channel, but I'm a bit fuzzy on this particular add-in component. 

I have a USB-C drive / enclosure and a USB-C to DisplayPort cable.

Help please. Thanks!