QDD-400G-FR4-S Cisco 400Gbps 400GBase-FR4 SMF 2km Duplex LC QSFP-DD

The Cisco 400GBase-FR4 Single-Mode Fibre QSFP-DD transceiver module is primarily deployed in high-performance data center backbones and telecom networks where rapid data throughput and moderate optical reach are essential. Organizations requiring dense, high-speed interconnects across racks or between facilities benefit from its balance of speed and distance using existing single-mode fiber infrastructure.

How It's Used:

• Connecting spine and leaf switches in large-scale data centers for virtualization and cloud workloads.
• Interfacing core routers in service provider networks to support high-capacity transport over metro areas.
• Linking storage clusters in enterprise IT environments where low-latency and high-bandwidth are critical.
• Enabling edge computing hubs to aggregate traffic from distributed sites with manageable fiber runs.
• Supporting scalable multi-tenant data centers requiring flexible and dense QSFP-DD transceiver modules.

This transceiver module facilitates streamlined network scalability and efficient utilization of optical resources, allowing IT infrastructures to maintain high throughput while accommodating growth in data volume and distance. It is suited for deployments where balanced performance and fiber reach improve operational consistency and network resilience.