While newer protocols are being adopted, as can be seen with all the fuss about USB-C, most peripherals and cables still rely ... USB 2.0 and 3.0 ports and connectors. The easiest way is to ...

A USB 3.0 connection requires five conductors, and the connectors are blue in color. Backward compatibility is typically provided by including four additional conductors, as shown in the image here.

You might also have some cables with Mini-B (a small connector used on many accessories and older electronics) on one end, or one of the many other physical connectors that USB has used over the ...