en espérant que cela t'aide

Several Google hits confirm this. "Port" is sometimes "connexion".

les modems ont disparu depuis belle lurette - et le data port Ethernet est remplacé par le Wi-Fi

"A few years ago all it meant was that the phone in the room had a second phone jack that you could plug your modem into. Now it means that as well has the possibility of the room having an Ethernet cable to plug into your computer."
http://www.physicsforums.com/showthread.php?t=121763

"What is a motel data port? - Yahoo! Answers
http://answers.yahoo.com › ... › Hardware › Desktops
The hotel data ports are usually Ethernet connections or wireless. The ethernet connections look like telephone cables, but a bit larger."