Description
Adafruit Female DC Power adapter – 2.1mm jack to screw terminal block
If you need to connect a DC power wall wart to a board that doesn’t have a DC jack – this adapter will come in very handy! There is a 2.1mm DC jack on one end, and a screw terminal block on the other. The terminals are labeled with positive/negative assuming a positive-tip configuration (which is the most common)