Using this cable is easy. Just plug the USB A end into your computer's USB port and the USB Micro B end into your micro:bit. This will power your micro:bit and let you transfer data at high speed. When using it, make sure the plugs are firmly inserted to avoid disconnection. For maintenance, keep the cable away from sharp objects to prevent cuts. Also, don't bend the cable too sharply or it might damage the internal wires. Store it in a dry place when not in use.