Shielded RJ-45: Internal vs External Ground?

I have seen the light and am going to replace the regular Cat5 cables on my radio links with shielded - using Ubiquiti's ToughCable Pro.

With shielded RJ-45 plugs, I see "Internal" and "External" as in Internal:

External:

For somebody who doesn't use that many - as in a hundred being a lifetime supply - the no-brainer would seem to be the "External" style because it can be used anywhere, not just with devices that automagically forward the ground from the shell of the connector their AC ground wire.

Does this make sense? Or am I missing something.

Ubiquiti NanoStations with POE Injectors.