Arduino Nano IO Expansion Shield is specifically developed for easy connection between Arduino Nano and other devices. Actually, it expands the Arduino Nano controller to link those devices in a simple free manner. It is a perfect additional of Nano controller and compatible with both Arduino Nano v3.x.

Nano I/O expansion Shield, for Arduino Nano V3 pinout

DC-power: Vin 6-12V (18V peack).

                  Vout 5V/800mA

Documents

Dimensional drawing
Schematic