What is a USB cable - lan cable

The term USB stands for "Universal Serial Bus".  USB cable assemblies are some of the most popular cable types available, used mostly to connect computers to peripheral devices such as cameras, camcorders, printers, scanners, and more. Devices manufactured to the current USB Revision 3.0 specification are backward compatible with version 1.1.

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USB Cable Construction Image
Detail of USB Cable Construction

The USB cable standard allows for these advantages over serial cable types:


USB Cable Connectors

USB Connectors Image
Figure 2 (USB Connectors include Type A and B, Mini-B plugs and jacks).

As mentioned above, USB cable assemblies are designed with several distinct connector types.  The most common types (figure 2) you will see are called Type A and Type B, though you may see "mini-B" connectors with either 4 or 5 pins.  The different connector types have an important strategic purpose to them. They are designed so you can not plug two computers into one another, and you can not plug two peripheral devices in together.

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