To use this Crestron SWE-8 Sonnex 8-Zone Multiroom Audio expander, you'll need to connect it to an appropriate power source separately as it doesn't include a power supply. When setting it up, make sure all the connections are secure. Note that it has only been power - tested, so check it thoroughly when you first use it. For maintenance, keep it in a dry and clean place. Wipe it gently with a soft cloth if it gets dirty. Avoid exposing it to extreme temperatures or moisture, as this can damage the device.