Using this adapter is a breeze. First, find the board with a DC jack you want to connect to. Take the end with the 2.1mm DC plug and insert it firmly into the DC jack. On the other end, you have a screw terminal block. Loosen the screws on the block, then connect your battery pack or wired power supply wires to the appropriate terminals. Make sure to match the positive and negative labels on the terminals for a correct connection. When using, avoid over - tightening the screws as it could damage the wires. Also, keep it in a dry place to prevent corrosion. If it gets dirty, you can use a dry cloth to gently wipe it clean.
