This BSS BLU-BIB 8-channel input expander doesn't come with a power supply. What you'll get is just the expander unit itself, without a power supply included.

To use this BSS BLU-BIB 8-channel input expander, you first need to connect it to your existing system. Since it doesn't have a power supply, make sure to use a compatible one separately. When connecting, check the channel numbers carefully to ensure correct input. As for maintenance, keep it in a dry and clean place. Avoid exposing it to extreme temperatures or moisture. Also, regularly check the connections to make sure they are secure. Remember, always use a proper power supply that matches the specifications of this expander to prevent any damage.