The item is a terminal expansion adapter, working very well for prototyping Arduino Nano projects
There are pins expansion hole for the 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)