Description
The Cisco QSFP-40GE-LR4 is a high-performance, long-range transceiver module designed for 40 Gigabit Ethernet applications. Built for data centers and enterprise networks, this QSFP+ module supports a transmission distance of up to 10 kilometers over single-mode fiber (SMF) using LC duplex connectors. It operates on four separate wavelengths in the 1310nm range, multiplexing them into a single fiber pair for efficient and reliable data transmission. With a power-efficient design and compliance with IEEE 802.3ba and QSFP MSA standards, it ensures seamless integration into existing Cisco networking environments.
This transceiver supports a data rate of 41.2 Gbps and is hot-swappable, allowing for easy upgrades and maintenance without network downtime. It features Digital Optical Monitoring (DOM) for real-time diagnostics, helping to monitor power levels, temperature, and signal integrity. The module is compatible with a wide range of Cisco switches and routers, making it a flexible solution for high-speed networking needs. Purchasing used or refurbished hardware provides a cost-effective way to expand network capacity while maintaining Cisco’s trusted performance and reliability.

