VIN Pin und GND Pin. Wie bei Allen Arduinos. The recommended range is 7 to 12 volts.
VIN. The input voltage to the Arduino board when it's using an external power source (as opposed to 5 volts from the USB connection or other regulated power source). You can supply voltage through this pin, or, if supplying voltage via the power jack, access it through this pin. http://arduino.cc/en/Main/arduinoBoardUno