Description

This adapter is ideal for connecting a battery or an external power supply to a timeline requiring a connection into DC Power 2.1 mm as most of the Arduino example. We find a connector male DC Power 2.1 mm on one side and a Terminal screw on the other side.

The terminal block screw is spotted with the inscription + and - to identify the polarity of the plug + inside - and outside, what the case more generally used with this type of plug.