GLC-ZX-SM-120KM Cisco 1Gb/s 1000Base-ZX Single-Mode Fibre 1550nm 120km Duplex LC Connector SFP Transceiver Module

The Cisco GLC‑ZX‑SM‑120KM SFP module delivers dependable, high‑speed connectivity for demanding network environments, extending your fiber link up to 120 km with crystal‑clear 1 Gb/s performance. Engineered for single‑mode fiber at 1550 nm, this duplex transceiver ensures low latency and robust signal integrity, even over long distances. Its LC connectors provide a secure, plug‑and‑play interface that simplifies installation and reduces downtime. Designed to meet Cisco’s rigorous standards, the module integrates seamlessly with a wide range of switches and routers, giving you the confidence to scale your infrastructure while maintaining exceptional reliability and efficiency.