Emakefun Nano Terminal Expansion Adapter Board Compatible with Arduino Nano V3.0 AVR ATMEGA328P with NRF2401+ Expansion Interface, DC Power Supply Interface (2PCS)
Brand: Emakefun
Color: Nano 2Pcs
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. working very well for prototyping for Arduino Nano projects. Package Included:

5 X Nano Terminal Expansion Adapter Board
The item is a terminal expansion adapter, working very well for prototyping for Arduino Nano projects
There are pins expansion hole for NANO board, which can directly lead the pins; With DC power supply interface, you can directly add external power or battery to supply power
With NRF2401+ expansion interface, you can insert NRF2401+ to achieve wireless communication
Added a filter capacitor to enhance the stability of wireless communication
We used Immersion Gold Technology to make sure every board has more reliable quality.Size is about 2.6" x 2.0" x 0.3" (L* W* H)