Do you mean DOS or an NT command prompt? AFAIK, most BIOS updates are done in either DOS or GUI Windows. A command prompt only NT is a bit tricky, and not very useful anyway. A DOS booting USB stick ...

I'm interested in support for linux and for windows. I don't want wireless. (if it has a wireless feature too then so be it, i'll ignore that feature). So the plug i'm looking for, you'd plug it into ...