That would be USB 2.0 and is pretty safe to assume that all USB ports and cables support this (If you can find a USB 1.0 or 1.1 port I’ll be impressed). Why bother with a 480Mbps logo if it’s the default minimum?

A tomb? In this economy? 😂

Personally I just have an old micro USB cable I cut the end off of and soldered solid-core wire to. Just plug the USB-A end into a battery bank and the wires into the breadboard rails and you’ve got a stable 5V supply. I rarely needed 3.3V on a breadboard, but when I did I usually had a 5V to 3.3V voltage translator already on the board which was enough to get by.

Any sort of op-amp circuit would easily make use of a 15V input, or better yet using the full 20V with a 10V reference to get +/-10V voltage rails for an amplifier circuit.

I think it’s just a very unfortunate auto-cropped thumbnail