Using this cable is a breeze. Just plug one end (either the USB - A or micro B) into your device with a matching port, and the other end into the source. There's no need to worry about which way to insert it because both connectors are reversible. As for maintenance, keep it away from sharp objects that could cut the cable. If it gets dirty, you can gently wipe it with a soft, dry cloth. Don't pull the cable forcefully or bend it sharply, as this could damage the internal wires. And remember, this cable is designed for devices with a microUSB port, so make sure your device is compatible before use.