This Klark Teknik DN9650 unit is a great digital audio network bridge but doesn't come with a network module. It comes with the correct power supply for seamless operation.

To use the Klark Teknik DN9650 Digital Audio Network Bridge, first connect it to a power source using the included correct power supply. Then you can connect it to your audio and network systems as needed. When using, make sure your network environment is stable to avoid connection problems. For maintenance, keep the device in a dry and clean place. Don't expose it to extreme temperatures or humidity. If there are any issues, it's recommended to contact a professional for help.