If you look at the I/O panel of any motherboard, you're going to see all sorts of connectivity options, including USB-C, ...

Right. Despite @iljitsch's great overview of the technical standard, I am still none the wiser as to how to buy a slightly longer cable to connect an incoming Thinkpad P14s to a nice new Dell U2723QE ...

Use left and right arrow keys to seek audio. Did you connect a second monitor, only for Windows to not detect it? Or was it working perfectly before Windows suddenly stopped recognizing multiple ...