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The 10/100 wired Ethernet and twin USB 2.0 ports found on the model B version of the board. The board doesn’t include wireless connectivity out of the box.
The device is powered via micro USB. The shipping notes recommend using a good quality power supply capable of providing at least 700mA at 5V. The Pi shouldn’t be powered by plugging it into another computer or USB hub, according to the documentation.
The board’s general purpose input/output pins, which can be used to connect additional circuitry to Pi and expand its capabilities.
The pins allow expansion boards to be added that work with motors, sensors and other peripherals - allowing the Pi to be used for a wide range of tasks, for instance controlling robots.