Assembled with Corning optical fiber cores and terminated with ceramic ferrule SC fiber patch connectors (including duplex sc clips). Designed for long distance applications that require a high bandwidth fiber optic data transmission networking solution. The fiber optic core is surrounded by a transparent, low refraction, cladding material. Light is contained within the fiber core (total internal reflection) causing the fiber within the patch cord assembly to act as a wave-guide. Light travels through the fiber bouncing off the boundary between core & cladding.