IO Expansion Shield For Arduino Nano is specifically designed to facilitate an easy connection between Expansion Shield For Arduino Nano and many other devices. In essence, it expands for Arduino Nano controller to link those devices in a simple and trouble-free manner.
This is a terminal adapter for the Arduino Nano. It labels for Arduino Nano version 3.0, however, you can still use this adapter for the older version(just have to remember that A0-A7 are in the reverse order). You can use this adapter to easily hook up Arduino Nano to an outside world via hook up wires.