Using your Marshall monitor is easy. First, connect the monitor to your device using the 3G - SDI video input cable. Then, plug in the included power supply to a suitable power outlet. Once powered on, adjust the display settings according to your preference. When using it as a desktop monitor, place it on a stable surface. If you want to mount it using VESA, make sure you have the right mounting hardware. As for maintenance, keep the monitor clean by gently wiping the screen with a soft, dry cloth. Avoid using harsh chemicals. Don't expose the monitor to extreme temperatures or humidity. If you encounter any issues, contact our customer support team.