USB, or Universal Serial Bus, is a standard for connecting computer peripherals. USB ports are found on almost all computers, and allow devices to be connected with ease. USB has become the most popular way to connect devices to computers, as it is simple and easy to use.

There are three main types of USB connectors: Type A, Type B, and Mini-USB. Type A is the most common type of connector and can be found on almost all USB devices. Type B connectors are larger than Type A and are usually used for printers or other large devices. Mini-USB connectors are smaller than both Type A and B connectors and are mainly used for portable electronic devices such as digital cameras or MP3 players.

Most newer computers have multiple USB ports that support high-speed data transfer rates of up to 480Mbps and beyond. This allows users to connect multiple peripheral devices at once without sacrificing speed or quality.