PS/2

USB/USB 2.0 connector

Firewire
Connettore USB / USB 2.0 Conetor USB / USB 2.0 Steckverbinder USB / USB 2.0 Connecteur USB / USB 2.0 Conector USB/USB 2.0

USB Connectors

USB (Universal Serial Bus) is an input-output interface which is much faster than standard serial ports.

There are two kinds of USB connectors:

  • "Type A" connectors, which are rectagular in shape and are generally used for devices which consume little bandwidth (like keyboards, mice, and webcams);
  • "Type B" connectors, which are square-shaped and are generally used for devices with heavy bandwidth requirements (like external hard drices);

USB Connectors

Pins

The pins on a USB connector are as follows:

Pin number Function
1 Power supply +5V (VBUS) 100mA maximum
2 Data (D-)
3 Data (D+)
4 Ground (GND)



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