OS2 LCU to SCU Single Mode Duplex Fiber Jumper is manufactured with the highest quality corning optical fiber. It is terminated with durable, high quality, small 1.25mm form factor, ceramic ferrule LCU and 2.5mm ceramic ferrule SCU connectors (both with duplex clips). Yellow zip-cord fiber optic patch cable with 2.0mm outer diameter, OFNR riser rated PVC jacket that's flame retardant, UV resistant and immune to electrical interference. 10 Meter length.