If you're looking to connect a DC power wall wart to a board without a DC jack, this adapter is a must - have! One end features a 2.1mm DC jack, and the other has a screw terminal block. The terminals are labeled for positive/negative based on the common positive - tip configuration.


Using this female DC power adapter is easy. First, find a DC power wall wart and connect it to the 2.1mm DC jack on one end of the adapter. Then, connect the other end with the screw terminal block to the board that doesn't have a DC jack. Make sure to match the positive and negative terminals according to the labels on the adapter. When using, avoid over - voltage situations. Also, keep the adapter in a dry and cool place. If it gets dirty, you can use a dry cloth to gently wipe it clean.