All Direct Attach Copper Cable

Cost-Effective, Low-Latency Connectivity from 10G to 800G

Overview

Direct Attach Copper (DAC) cables are the most economical and efficient option for short-distance, high-speed networking. Built with twinax copper conductors and pre-terminated with SFP, QSFP, or OSFP connectors, DACs deliver ultra-low latency and reliable performance without the need for separate optical transceivers or patch cords.

Our DAC portfolio spans 10G through 800G, supporting data center, enterprise, HPC, and AI workloads. Standard cable lengths are available up to 10 meters (33 ft), with both passive and active versions depending on the application and data rate.

Broad Multi-Vendor Compatibility

All NS DAC cables are multi-vendor compatible, ensuring seamless integration with servers, switches, and NICs from:
Cisco, Huawei, Juniper, Arista, NVIDIA/Mellanox, Intel, Dell, Extreme, HPE Aruba, Fortinet, and more.

With universal interoperability, you can confidently deploy DACs across diverse networking environments without vendor lock-in.

Comprehensive Product Range

Our DAC collection includes a wide selection of form factors and speeds to suit varied network needs:

• 10G / 25G DACs (SFP+ / SFP28):
  Ideal for enterprise access layers, server uplinks, and short-range aggregation.

• 40G DACs (QSFP+):
  Optimized for switch-to-switch interconnects or 40G-to-4×10G breakout scenarios.

• 100G DACs (QSFP28):
  The standard for modern data center leaf-spine architectures and high-speed server connections.

• 200G DACs (QSFP56):
  Designed for AI clusters and next-generation data center deployments requiring more throughput.

• 400G DACs (QSFP56-DD / OSFP):
  High-capacity connectivity for hyperscale data centers and HPC clusters.

• 400G / 800G DACs (OSFP):
  Cutting-edge interconnects for ultra-high bandwidth workloads such as large-scale AI training and cloud computing.

Key Benefits of NS DAC Cables

• Cost-effective: Lower overall investment compared to optical modules.

• Ultra-low latency: Direct electrical connections without optical conversion.

• Energy efficient: Passive DACs consume virtually no power; active options remain low power.

• Flexible length options: Available from 1 m (3 ft) up to 10 m (33 ft), tailored by speed and design.

• Durability & EMI protection: Twinax copper with robust PVC jackets ensures reliability.

• Vendor interoperability: Seamlessly works with all leading switch and server platforms.

Buying Guide for DACs

• Match the speed: Choose from 10G, 25G, 40G, 100G, 200G, 400G, or 800G based on your network.

• Select the right interface: Options include SFP+, SFP28, QSFP+, QSFP28, QSFP56, QSFP56-DD, and OSFP.

• Pick the length: Short runs (≤3 m) are best with passive DACs; medium runs (5–7 m) may require active designs; maximum reach is 10 m for active models.

• Consider the application: Enterprise uplinks, data center fabrics, HPC interconnects, or AI/ML clusters.

• Ask for expert advice: Contact our team for custom lengths, vendor-specific compatibility, or large-scale deployment planning.

Conclusion

The All Direct Attach Copper Cables Collection delivers complete coverage from 10G to 800G, with options for every major form factor. NS DACs combine cost efficiency, ultra-low latency, and wide compatibility, making them the preferred choice for enterprise IT, cloud providers, and hyperscale operators alike.

⚡ Upgrade your infrastructure with NS DAC cables and achieve reliable, high-speed, and scalable network connectivity today.