This Yamaha DIO8 Digital I/O Box comes without any cards. It has only undergone a power test. The package includes the correct power supply, ensuring you can start using it right away.

To use the Yamaha DIO8 Digital I/O Box, first connect it to the correct power supply included in the package. After that, you can connect it to your relevant devices as needed. When using it, make sure the power supply is stable to avoid malfunctions. As for maintenance, keep the box in a dry and clean place. Don't expose it to extreme temperatures or humidity. If you notice any issues during use, stop using it immediately and check the connections or contact customer support.