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Connecting USB devices
Universal Serial Bus (USB) is a serial bus design that is capable of cascading peripherals such as a digital camera, keyboard, mouse, joystick, scanner, printer and modem. With USB, complex cable connections can be eliminated.
Your computer comes with six USB ports: two on the front and another four on the rear panel. These ports support USB 2.0 high performance external devices such as webcams and digital still cameras. They also allow you to connect additional USB devices to your computer without using up its system resources.
To connect a USB device, simply plug the device cable into any of the
USB ports 
(black port).
Note: The USB devices shown below are for your reference only. Actual device model may vary in select countries.