Using this adapter is simple. First, identify the 5.5 × 2.1 mm DC barrel jack on your device. Then, connect it to the adapter. Next, look at the labeled positive and negative screw terminals on the adapter. Connect your wires to the appropriate terminals, with the positive wire going to the terminal connected to the center pin. When handling this adapter, make sure your hands are dry to avoid electrical shock. Also, don't apply excessive force when tightening the screws on the terminals to prevent damage. To keep it in good condition, store it in a dry and clean place when not in use. Check the connections regularly to ensure they are secure.
