Using this power cable is easy. First, locate the output on your power supply. Then, take the 2.1mm straight male plug on the cable and insert it into the power supply output. Next, find the input on your pedal and plug in the 2.1mm right - angle male plug. That's it, your pedal should now be powered. When using, make sure the power supply is turned off before connecting or disconnecting the cable to avoid any electrical issues. For maintenance, keep the cable away from sharp objects that could cut it. Also, store it in a dry place when not in use to prevent damage from moisture. If you notice any fraying or damage to the cable, stop using it immediately and replace it to ensure safe operation.