Here's What Every Different USB Port Type Actually Means

C, and USB Type-B ports all provide data transfers and power delivery, though the latter is much less common on modern ...
Ars Technica

USB-IF posts first photos of new reversible Type-C connector

USB Type-A. USB Type-B. Mini-USB Type-A. Mini-USB Type-B. Micro-USB Type-A. Micro-USB Type-B. That special, ugly variant of micro-USB Type-B you need to use for phones (and some hard drives) with USB ...
SlashGear

What Is USB Type B And Which Devices Still Use It?

USB ports and connectors come in a variety of shapes and sizes. While you may be familiar with common types like USB Type-A and USB Type-C, there is also USB Type-B. It was introduced back in 1996 ...

How do you tell what type of USB ports you have?

To identify the specific USB ports and connectors on your devices, you can simply look at their shape and color, or check ...
Ars Technica

USB Mini Type-B : 4 pin or 5 pin?

I think I've seen both eg the more typical 5 pin on most Cameras MP3 players etc and then the 4 pin that comes on the Pentax Optio S4 for example.