2PCS Mini per Nano V3.0 ATmega328P per Arduino Micro Controller Scheda Modulo...
For Nano V3. Each of the 14 digital pins on the for Nano can be used as an input or operate at 5 volts. Each pin can provide or receive a maximum of 40 mA and has an internal pull-up resistor (disconnected by default) of 20-50 kOhms.