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?

Within the USB-C plug, you will know which CC pin is attached to the CC wire, ... ( Rp = 10K, Rd = 5.1K ). A USB C receptacle or plug has 24 pins. 4 pins are for ground, 4 pins are for VBus.

Delock's front panel fits into a standard 3.5-inch bay inside your case. It provides 10 USB Type-A ports. The panel utilizes the VLI VL813 hub controller, so we're looking at USB 3.0 ...

With a 4.5-star rating, the Keychron K3 Version 2 retails for $83.99 and is a slim profile mechanical keyboard that can be connected to a PC, Mac, or smartphone over Bluetooth or a wired USB ...