Using this Ross SDI to HDMI converter is easy. First, connect the SDI input to your SDI source device. Then, link the HDMI output to your HDMI - compatible display. Since it doesn't have a power supply, you need to use your own suitable power source. When using, make sure the power supply you choose meets the converter's requirements. For maintenance, keep the converter in a dry and clean place. Avoid exposing it to extreme temperatures and moisture. If there are any issues, check the connections first before seeking further help.