Features: Great for temporary things you don't want to solder. It provided a nice platform for wiring circuits to an Ar-duino Nano. It can be used in conjunction with or in place of a breadboard. It lets you make a temporary circuit without the reliability issues you get with prototyping boards, but maybe need a bit more effort. You need to use your Nano to hold the black pin headers straight and flat during soldering. Package Included: 5 x Nano Terminal Adapter Expansion Boards

?Little Tips?It lables for Ar-duino 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). Any questions, you can contact me by email at any time. ?Easy to Use?You can use this adapter to easily hook up Ar-duino Nano to an outside world via hook up wires, and It can be used in conjunction with or in place of a breadboard. ?Nice Platform for Wiring Circuits?It provided a nice platform for wiring circuits to Ar-duino Nano.It can connect a large number of digital lines to Ar-duino while maintaining the footprint of the original Nano. ?Finished Product?These boards are fully assembled. No soldering required. Size is about 2.21" x 1.65" x 0.50" (L* W* H). ?Designed for Ar-duino Nano V3.0?The item is a terminal expansion adapter, working very well for prototyping Ar-duino Nano projects.