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.
There are a few ways to differentiate USB 2.0 and 3.0 ports and connectors. The easiest way is to check if the USB port has a splash of blue color inside, which signifies the newer USB 3.0 interface.
Keep reading to know more about the different types of USB cables and connectors. The USB types mentioned above only cover the shape, size, and format used to connect devices and accessories.