[petschge]

If that thing had VGA-in on top of the keyboard and mouse out via USB, it would be a great tool to carry in a data center when you have to physically interact with a machine.

[rasz]

Plenty of commercial stuff that does just that. You can even buy dedicated network testers with this functionality.

[The most useful networking tool I own - AliExpress "CCTV Tester" that does a lot more than test CCTV] Cameron Gray https://www.youtube.com/watch?v=DZQSkFl4yIM