3g-modem

Hello, I need 4G cellular internet USB modem, that is NOT android and not vendor-locked. If modem is not android, its probably using AT commands which are universally work on FreeBSD and Windows. Why not android modem? First, I need precise control of parameters, which, of course, android...

I installed FreeBSD, but it does not have a default GUI ! I have to install it myself ! I watched a lot of videos about installing the GUI in FreeBSD, and there all the video authors install it by connecting to the Internet via wifi-router, but to connect to the Internet I have only a 3g modem...