1Suitable for fiber optic LAN, various fiber optic communication systems, fiber optic CATV, instrumentation, engineering projects, home wiring. 2Made of high quality environmentally friendly PVC material, high strength, not easy to break. 3SC-FC single mode & single core optical fiber patch cable, low loss, stable and high speed. 4Plug is made of high quality ceramic ferrule, with stable performance after use. 5Low insertion loss, good repeatability, good interchangeability, large return loss, and good inter-plug performance.