The LEGRAND-ORTRONICS SC-SC Duplex SM Fiber Coupler is a passive fiber optic connector designed for single-mode fiber applications. This plastic coupler facilitates the connection of two SC-terminated single-mode fiber cables, creating a continuous optical path. It is suitable for IT infrastructure professionals and network technicians requiring reliable, straightforward fiber optic interconnections within data centers, telecommunication rooms, or enterprise networks. Its plastic construction provides a cost-effective solution for environments where metal components are not required. This component, identified by part number 27111, is a fundamental building block for managing and expanding single-mode fiber optic cabling systems.