The difference between the connector of USB Type A and USB Type B plug

USB is the abbreviation of Universal Serial Bus. It belongs to the standard of an external bus. In the interface directory of USB-232/485 series, it means that the 1-port interface has a USB Type A plug, while the 2-port and 4-port interfaces have USB B. Type interface. So, do you know the difference between these usb connector interfaces? If I need to connect to my computer, do I need to work with other hardware? The following Konnra Electronics connector engineers will give you a detailed introduction to USB A type. What is the difference between the connector interface and the USB Type B plug.
USB 3.0 Type A connector
The USB socket used by the PC manufacturer belongs to the Type A connector, which can be judged by its rectangular shape. The Type A socket can be found on the upstream device, such as a USB host or a hub. USB Type A plugs are also found on cable and smaller peripherals such as mice and flash drives.
USB 3.0 Type B connector
Use removable cable for some larger USB peripherals such as printers and scanners, and use a square-shaped USB Type B socket. The instrument is another downstream device. To connect the instrument to a PC, you also need a USB Type A to Type B cable.
Both types of plugs explained above have the same number of pins and are electrically identical, they are only mechanically different. This is a feature deliberately designed by the USB connector interface implementer to prevent the host from being connected to another host, which may cause a short circuit.
In the comparison of the USB connector interface shown below, the left side is the USB Type A plug connector interface, and the right side is the USB Type B plug connector interface. We mainly pay attention to the pin numbers of the two plug interfaces. It can be found that the two plug interface types have the same number of pins, and they only differ in mechanical and appearance design.
Type A and Type B connectors



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