Cisco QSFP-40G-ER4 40GBase-ER4 QSFP+ Transceiver 1271-1331 nm 40 km LC DDM SMF Optical Transceiver Module

The Cisco QSFP-40G-ER4 is a high-performance 40GBase-ER4 QSFP+ transceiver designed for reliable long-distance data transmission in data centers and enterprise networks. Operating within a wavelength range of 1271 to 1331 nm, it supports single-mode fiber (SMF) connections for distances of up to 40 kilometers. This compact module features a dual LC connector, ensuring easy installation and efficient space utilization. With integrated digital diagnostic monitoring (DDM) capabilities, it provides real-time insights into operational performance, enhancing network management and reliability. Ideal for high-bandwidth applications requiring extended reach, the QSFP-40G-ER4 ensures seamless connectivity and robust network performance over long distances.