SMAKN&reg; Screw Terminal Expansion Adapter Board for the Arduino Nano V3.0 AVR ATMEGA328P Use this dock to add extra connections to your Nano! It uses screw terminals so that you can be sure the connection is strong, and also use thicker/stranded wires. This dock must be soldered together and a Nano is NOT sold with this item and is only pictured for illustrative purposes. Package Contents:1 Nano Dock.