Kramer’s 2LC fiber optic cables are constructed of 2 individual color coded multi-mode 50/125um simplex cables of diameter 2.0mm each, contained in a round overall orange jacket. They are intended primarily as companion to various Kramer detachable transmitter/ receiver sets. Quality Construction - Multimode optical fiber with operating wave lenght: 850nm. Subcables are color coded: yellow and white and are terminated with the popular LC connectors for easy installation and are shipped with dust caps at the ends. Numerous Applications - Use these cables to connect Kramer FireWire Fiber Optic Repeater 648.