Standard Terminal Adapter Board For Arduino Nano 3.0 V3.0 AVR ATMEGA328P ATMEGA328P-AU Module Expansion Shiled Module

This is a terminal adapter for arduino Nano. It lables 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 for arduino Nano to an outside world via hook up wires.