Female DC Power adapter - 2.1mm jack to screw terminal block

via Adafruit
$3.55
SKU AF-368

We can get 100 units in Australia from Adafruit. If you order today, we can dispatch this stock between Dec 18, 2019 - Dec 21, 2019.

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)