Using this AJA HI5 converter is easy. First, connect your HD/SD - SDI device to the converter using the appropriate cables. Then, connect the converter to your HDMI - enabled display with the included HDMI cable. Plug in the correct power supply to power up the converter. When using it, make sure all connections are secure to avoid signal loss. For maintenance, keep the converter in a dry and cool place. If it gets dirty, you can use a soft, dry cloth to gently wipe it. Don't expose it to extreme temperatures or moisture, as this may damage the device.