400G QSFP56-DD AOC Cables

Scalable Solutions for Data Centers and AI Clusters

Overview

The 400G QSFP56-DD Active Optical Cable (AOC) portfolio is designed to meet the needs of next-generation high-performance networks. Delivering 400 Gbps over 8×50G PAM4 lanes, these cables provide a plug-and-play, energy-efficient alternative to discrete optics and fiber patch cords.

They combine integrated optical transceivers and multimode fiber into one assembly, ensuring low latency, simplified cabling, and consistent performance. Standard cable lengths are available up to 30 m (98 ft), while custom builds extend to 100 m (328 ft) for deployments requiring additional reach.

These AOCs are purpose-built for AI/ML clusters, HPC systems, and hyperscale data centers that demand reliable, high-bandwidth connectivity.

Broad Compatibility

NS 400G AOCs are optimized for NVIDIA/Mellanox platforms and also validated across a wide range of leading vendors, including Cisco, Juniper, Arista, Dell, Huawei etc. This ensures smooth integration across diverse infrastructures and eliminates concerns about vendor lock-in.

Product Range

• QSFP56-DD to QSFP56-DD AOC
  Provides direct 400G connectivity between core switches or between servers and switches, ensuring stable high-speed links.

• QSFP56-DD to 2×QSFP56 AOC
  Splits one 400G port into two 200G QSFP56 connections, offering flexible deployment in mid-scale data center or AI workloads.

• QSFP56-DD to 4×QSFP56 AOC
  Converts one 400G port into four independent 100G links, enabling versatile access and aggregation designs in dense environments.

Key Benefits

• High bandwidth performance: Supports full 400G PAM4 transmission for demanding workloads.

• Flexible configurations: Choose from direct attach, 1:2 breakout, or 1:4 breakout designs.

• Energy efficiency: Consumes less power than discrete optics with patch cords.

• Length options: Standard stock up to 30 m, with custom builds up to 100 m.

• Vendor interoperability: NVIDIA-optimized and compatible with all major networking brands.

Buying Guide

• Choose by type:

  • 1:1 Direct AOCs for core switch-to-switch interconnects.

  • 1:2 Breakout for dual 200G connections.

  • 1:4 Breakout for four 100G links.

• Select by length:

  • 1–10 m for in-rack.

  • 15–30 m for rack-to-rack.

  • Custom up to 100 m for specialized deployments.

• Application fit: Well-suited for AI/ML clusters, HPC environments, and large-scale data center fabrics.

• Ask the experts: For complex topologies or custom builds, contact our support team for tailored recommendations.

Conclusion

The 400G QSFP56-DD AOC Collection delivers high-capacity, flexible, and efficient connectivity tailored for modern data center and AI applications. Whether for direct high-speed interconnects or breakout scenarios, NS AOCs provide future-ready performance with guaranteed compatibility across NVIDIA and other leading platforms.

⚡ Upgrade your infrastructure with NS 400G AOCs today — scalable, reliable, and built for tomorrow’s workloads.