Using this Micro USB B Round Panel Mount Plug is a breeze. First, find a suitable panel made of wood, plastic, or metal for your project. Use a common hole - saw or bit to drill a 30mm diameter hole in the panel. Unscrew the plastic nut from the plug. Insert the plug through the hole and then re - attach the plastic nut. You'll notice two HDMI sockets on either side of the plug, which you can use to connect any cable. When it comes to the panel, it can be up to 16mm thick or as thin as a few mm. Just make sure to handle the plug gently to avoid any damage to the body or the plastic lip. For maintenance, keep the plug clean and dry. If it gets dirty, you can use a soft, dry cloth to wipe it down. Don't use any harsh chemicals as they might damage the plug.