[geonineties]

Usb4 ~= thunderbolt 3 so you can use a 15$ thunderbolt 3 to 2 adapter and 50$ thunderbolt 2 to 10gsfp+ external card

[shmerl]

I found one with Aquantia chip: Sonnet Solo10G SFP+.

[geonineties]

Nice! What OS do you run it with?