Using this cable is easy. Just plug the 9-pin male end into the device with a 9-pin port and the 6-pin male end into the device with a 6-pin port. Make sure the connection is secure. When using, avoid bending the cable sharply or pulling it too hard. To maintain it, keep it in a dry and clean place. If it gets dirty, you can gently wipe it with a soft, dry cloth. This cable has been reliable for 25 years, so use it worry - free.