Description
The Cisco QSFP-40G-CSR4 is a high-performance, multimode fiber transceiver designed for reliable 40GbE connectivity in data centers and enterprise networks. Built in a compact QSFP+ form factor, it supports a maximum link length of up to 300 meters over OM3 fiber and 400 meters over OM4 fiber, making it ideal for high-speed, short-range connections. With MPO-12 connector compatibility, this module enables efficient parallel fiber transmission, reducing infrastructure complexity. Its hot-swappable design ensures seamless integration into existing Cisco networking equipment, minimizing downtime during upgrades or replacements.
Engineered for efficiency, the QSFP-40G-CSR4 operates on four independent 10Gbps channels, which are aggregated to deliver a total data rate of 40Gbps. It supports Digital Optical Monitoring (DOM) for real-time diagnostics, allowing network administrators to monitor critical parameters such as temperature, power levels, and signal integrity. Designed for low power consumption, it operates at just 3.5W, helping to optimize energy efficiency in high-density environments. This transceiver is a cost-effective solution for upgrading network infrastructure with used Cisco hardware, offering reliable performance at a fraction of the cost of new equipment.

