La description

"Audio connectors and receptacles from Neutrik, a manufacturing company from Lichtenstein set up in 1975, are widely applied in audio and video recording studios around the world, as well as concert sound systems, and are well-known for their innovative design and one-step ahead features based on the latest mechanical and electrical know-hows. The technologies are secured by a number of patents and license agreements.opticalCON DUO Chassis ConnectorThis chassis connector acts as a ""feed-through"" allowing simplified installlations by connecting a conventional LC-Duplex on the rear. It is built in the standard D size shell and features an automatic sealing cover for maximum dust and dirt protection and a push-pull locking mechanism for safe connection."''