QDD-4X100G-FR-S Cisco 4x100G QSFP-DD Transceiver Module 2km SMF

The QDD-4X100G-FR-S is a Cisco QSFP-DD transceiver module that aggregates four 100G channels into a single port, providing a total bandwidth of 400G. It's commonly used in data center environments to efficiently manage high-speed data transfer across moderate distances.

Often found in hyperscale cloud infrastructure and enterprise networks, this module is built for network engineers and operators who need reliable, high-capacity connectivity without the complexity of multiple cables. It fits into QSFP-DD compatible ports on Cisco devices, streamlining data workflows.

Key Features

• Combines four 100G lanes into one QSFP-DD port for higher density
• Supports FR standard for 2km reach on single-mode fiber
• Operates with Cisco’s networking equipment ensuring seamless integration
• Hot-pluggable design to minimize downtime during upgrades
• Complies with QSFP-DD Multi-Source Agreement standards

This transceiver is typically deployed in data center fabrics or aggregation layers where bandwidth demand is high but distances remain within metro reach. It helps reduce cabling complexity while maintaining robust performance for critical network links.

In practice, it enables efficient scaling of network capacity while simplifying infrastructure management, making it a practical choice for operators aiming to boost throughput without extensive hardware changes.