Description
The Cisco QDD-400G-LR8-S is a high-performance 400GBASE-LR8 transceiver module designed for long-reach data center and enterprise networking applications. Housed in a QSFP-DD form factor, it supports eight LAN-WDM wavelengths operating at 50Gbps each, enabling a total line rate of 400Gbps over single-mode fiber. With a reach of up to 10 kilometers using duplex LC connectors, it’s ideal for high-bandwidth interconnects across large campus or metro environments. The module is hot-swappable and designed for high-density networking gear, making it a reliable choice for expanding existing infrastructure.
This transceiver complies with IEEE 802.3bs and QSFP-DD MSA standards, ensuring compatibility with a wide range of Cisco networking equipment. It operates within a standard commercial temperature range (0°C to 70°C) and includes built-in digital diagnostics monitoring (DDM) for real-time performance tracking. The unit features integrated forward error correction (FEC) and low power consumption, maximizing efficiency without compromising signal integrity. When purchasing used, ensure the module has been tested for optical output, connector cleanliness, and firmware compatibility to maintain optimal performance.