Cisco QDD-2X400G-FR4 Module : Dual 400G PAM4 , 2km Reach & Low Power QSFP-DD Optical Transceiver

Cisco QDD-2X400G-FR4 Module : Dual 400G PAM4 , 2km Reach & Low Power QSFP-DD Optical Transceiver

The Cisco QDD-2X400G-FR4= is a high-performance QSFP-DD optical transceiver designed for next-generation data center interconnects (DCI), cloud networking, and 5G infrastructure. This cutting-edge module delivers dual 400G (2x400G) connectivity using PAM4 modulation, enabling ultra-high bandwidth with improved spectral efficiency. With a 2km reach over single-mode fiber (SMF), it is ideal for hyperscale data centers, enterprise networks, and service provider deployments.

Key Features & Benefits

✔ Dual 400G (2x400G) Capacity – Supports 800G aggregate bandwidth in a compact QSFP-DD form factor, maximizing port density.
✔ PAM4 Technology – Enables higher data rates with lower power consumption compared to traditional NRZ modulation.
✔ 2km Optical Reach – Ideal for data center interconnects (DCI) and metro network applications.
✔ Low Power Consumption – Energy-efficient design reduces operational costs in high-density deployments.
✔ Hot-Pluggable & MSA-Compliant – Ensures compatibility with Cisco Nexus 9000, ASR 9000, and third-party switches.
✔ Seamless Integration – Works with Cisco ACI, SONiC, and SDN solutions for automated network management.

Technical Specifications (Parameters Table)

Ideal Use Cases

• Data Center Interconnects (DCI) – High-bandwidth, low-latency connections between facilities.

• Cloud & Hyperscale Networking – Supports AI/ML workloads, distributed storage, and high-performance computing (HPC).

• 5G & Telecom Networks – Backbone infrastructure for mobile fronthaul/midhaul.

• Enterprise Core Networks – Future-proofing for increasing bandwidth demands.

Why Choose Cisco QDD-2X400G-FR4?

Cisco’s QDD-2X400G-FR4= module combines industry-leading performance, energy efficiency, and reliability, making it a top choice for modern high-speed networks. Backed by Cisco’s warranty and support, it ensures