Starting this new thread since the High Sierra thread on the same topic is quite long now (great info though) and I'm interested in getting info and helping others with decisions on adding a 10Gb ethernet card to a new Mojave build. Many of the solutions for High Sierra required flashing AQ cards firmware with MacOS 10.13.3 before they would work. Many of us not only don't have access to that earlier version of MacOS, we're now wanting OOB solutions for Mojave builds. I don't have a solution...
Mojave native support for 10Gb ethernet
Mojave native support for 10Gb ethernet