The USB 2.0 Type-B connector is square with slightly rounded corners at the top. In contrast, the USB 3.0 Type-B connector features a square design with a noticeable protrusion at the top.

We may receive a commission on purchases made from links. Connectors are synonymous with modern electronics, and since the early 2000s, one standard has dominated all others — the USB.

You’ll find the roughly square-shaped USB-B ports found on peripherals like scanners, printers, and audio interfaces. Finally, many modern computers have USB-C ports, which have a flattened ...