I thought that a type-B USB plug was a type-B USB plug. But some sources say that type B is 4 pin, while others say it's 5 pin.Are they confused or am I?

1) A device that uses this type of USB Type-B port 2) A USB Type A to 5-pin mini Type-B cable 3) A driver from Cisco to make this work with your laptop operating system ...

The M4 Pro ‌Mac mini‌ supports Thunderbolt 5, which means M4 Pro and M4 Max versions of the ‌MacBook Pro‌ will as well, but it is compatible with all of Apple's USB-C devices.

To quote Wikipedia, “the 24-pin double-sided connector provides four power-ground pairs, two differential pairs for USB 2.0 data bus (though only one pair is implemented in a Type-C cable), four pairs ...