The USB A connector is flat and rectangular and larger than other types, and t is held in place purely by friction and this makes it very easy to connect and disconnect, although not good if it is likely to be used in an environment where the equipment will be subject to vibration. The USB Type A plug is the male version of the connector. What might be referred to as the socket, is the female connector or receptacle, although it is often referred to as the port. The female connector or receptacle is the type found on the host, e.g. computer, etc, whereas the male will be seen on items like flash memories, mouse connector, keyboard connector, etc. There is some colour coding on these connectors in terms of their capabilities. USB 3.0 Type A connectors are often, but not always, the coloured blue - look for the plastic lip within the connector itself.
USB 2.0 Type A and USB 1.1 Type A connectors are often black, but this is not always the case. Notice the blue insert on the connector that generally indicates USB 3 USB type B connector outlinesĪ second connector type known as the Type B was often used for smaller peripherals. This had slightly different pinout arrangement. The USB B type connector is almost square in shape, but it has slightly bevel on the corners on the top ends of the connector. Similar to the USB A connector, the B type connector uses the friction to retain the connector in place.
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