200G QSFP56 DAC Cables

High-Density Direct and Breakout Copper Solutions

Overview

The 200G QSFP56 Direct Attach Copper (DAC) cable family is purpose-built for the latest generation of high-speed networking. Supporting 200 Gbps over 4×50G PAM4 lanes, these passive twinax cables deliver ultra-low latency, near-zero power consumption, and a cost-effective alternative to optical modules.

With standard lengths up to 3 m (10 ft), NS 200G DACs are ideal for in-rack and adjacent-rack deployments, where short-range high-bandwidth links are essential. Designed primarily for NVIDIA-based switches and AI/ML workloads, they also offer interoperability with select equipment from Cisco, Juniper, Arista, and Dell.

Broad Compatibility

NS 200G DACs are optimized for NVIDIA/Mellanox platforms, making them the go-to choice for AI clusters, HPC environments, and GPU-intensive workloads. They are also validated for compatibility with select switches and servers from Cisco, Juniper, Arista, and Dell, giving customers flexibility in mixed environments.

Product Range

• QSFP56 to QSFP56 DAC
  Provides direct 200G-to-200G connections between switches or from servers to switches, ensuring stable throughput with minimal latency.

• QSFP56 to 2×QSFP56 DAC
  Splits one 200G port into two independent 100G QSFP56 links, allowing efficient scaling in modular or multi-tier designs.

• QSFP56 to 4×SFP56 DAC
  Converts a single 200G port into four separate 50G SFP56 connections, delivering flexibility for access networks and server connectivity.

Key Benefits

• High-bandwidth performance: Full 200G transmission using PAM4 signaling.

• Flexible deployment: Available in direct, 1:2, and 1:4 breakout configurations.

• Ultra-low latency: Electrical copper signaling ensures near-instantaneous response.

• Energy efficient: Passive design consumes virtually no power.

• NVIDIA-optimized: Built for NVIDIA environments, while supporting limited cross-vendor use cases.

Buying Guide

• By type:

  • Choose QSFP56 to QSFP56 for straightforward 200G interconnects.

  • Select 1:2 breakout for dual 100G connectivity.

  • Select 1:4 breakout for 50G server or access deployments.

• By length: Best suited for 1–3 m links, covering in-rack and rack-to-rack use cases.

• By application: Recommended for AI/ML clusters, HPC workloads, and short-range high-speed fabrics.

• Consult our team: For non-NVIDIA networks or mixed-vendor environments, confirm compatibility before deployment.

Conclusion

The 200G QSFP56 DAC Collection delivers a powerful blend of performance, flexibility, and efficiency for next-generation networking. With direct and breakout designs, NVIDIA optimization, and simple plug-and-play deployment, NS DACs are the reliable choice for short-range 200G connectivity in AI, HPC, and advanced data center infrastructures.

⚡ Streamline your 200G interconnects with NS DACs — optimized for NVIDIA and ready for high-bandwidth workloads.