Using this cable is easy. Just plug the USB A end into a power source like a computer or a wall charger, and the Micro B end into your device with a microUSB port, such as a PyPortal or a Raspberry Pi. It's a 2 - meter long cable, giving you enough length to move around. For the 1 - meter version, it's fully reversible, so you don't have to worry about plugging it in the wrong way. When it comes to maintenance, keep it away from sharp objects to avoid cutting the cable. Also, don't bend it too sharply or pull it too hard. If it gets dirty, you can gently wipe it with a dry cloth.