Type B ports are found on many USB non-host devices, such as audio interfaces, external hard drives, and printers. Type B plugs are found on one end of most USB cables. ... USB 3.0 uses a 9-pin form of Type B connection, which allows for faster data transfer.

Why is USB type B still used?

The connector sizes are gradually smaller than before. It is a big advantage because it reduces board size. But the B type connector is more suitable for a big size product because it is very easy to connect the plug.

What is the point of USB B?

What is USB Type-B used for? You'll typically find USB Type-B ports on larger devices you connect to your computer, such as printers and scanners. You might also have external storage devices or drives that use them. Most USB Type-B connectors are at one end of a USB Type-B to USB Type-A cable.