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Cisco 200G Transceiver Modules

QSFP56 form factor 200G optics serve as a vital mid-tier solution for data center leaf-to-spine spans. Four 50G lanes with PAM4 modulation provide a balance of high bandwidth and lower power consumption for AI/ML clusters.

Cisco 200G Transceiver Modules
200G QSFP56 PAM4 AI/ML InfiniBand Data Center

Product Overview

Mid-Tier Solution

The ideal bandwidth tier between 100G and 400G, optimizing cost-per-bit for leaf-to-spine connections.

4x50G PAM4

Four lanes of 50G PAM4 signaling deliver 200G aggregate bandwidth with efficient modulation.

InfiniBand Ready

Supports 200G HDR InfiniBand for high-performance computing and AI training interconnects.

Power Efficient

Optimized power-per-gigabit reduces operational costs while maintaining wire-rate performance.

AI/ML Clusters

Purpose-built for the bandwidth demands of distributed AI training and inference workloads.

Flexible Deployment

Multiple reach options and breakout capabilities for versatile data center architectures.

Features and Benefits

Balanced performance for modern data center fabrics.

200G QSFP56 transceivers bridge the gap between 100G and 400G, delivering optimal cost-per-bit for leaf-to-spine and AI/ML cluster connectivity.

PAM4 Modulation

50G per lane with PAM4 signaling doubles per-lane throughput over NRZ-based 100G QSFP28.

InfiniBand HDR

Native 200G HDR InfiniBand support for GPU-to-GPU fabric in HPC and AI clusters.

Breakout Capable

Split a single 200G port into 2x100G or 4x50G connections for flexible connectivity.

Low Power

Industry-leading power efficiency reduces cooling requirements and operating expenses.

Cisco Certified

Tested and validated on Cisco Nexus and Catalyst platforms with full TAC support.

Hot-Swappable

Replace modules without powering down the switch for zero-downtime maintenance.

Feature & Benefit Details

Feature
Benefit
QSFP56 Form Factor
Same mechanical footprint as QSFP28 for seamless slot-level migration to 200G.
4x50G PAM4 Lanes
Doubles per-lane throughput compared to QSFP28, delivering 200G in the same form factor.
InfiniBand HDR Support
Native 200Gb/s InfiniBand for HPC and AI training cluster interconnects.
Breakout Mode
Flexible 2x100G or 4x50G breakout for mixed-speed leaf-spine connectivity.

Specifications

200G QSFP56 Module

Form FactorQSFP56
Data Rate200 Gbps
ModulationPAM4
Electrical Interface4x50G PAM4
ApplicationsAI/ML, InfiniBand HDR

Reach & Compatibility

SR4100m (OM4 MMF)
DR4500m (SMF)
FR42km (SMF)
Breakout2x100G or 4x50G

Documentation

200G QSFP56 Data Sheet

Cisco 200G QSFP56 cables and transceiver modules data sheet. Full specifications, ordering information, and compatibility details.

Download PDF ›

Ready to deploy 200G?

Our optics specialists will build a custom quote — including volume discounts, reach option guidance, and compatibility verification.

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  • Response within one business day
Cisco 200G Transceiver Modules