100G QSFP28 DAC Cables

High-Speed Direct and Breakout Copper Interconnects

Overview

The 100G QSFP28 Direct Attach Copper (DAC) cable family delivers a fast, affordable, and efficient solution for short-distance interconnects in today’s data centers and enterprise networks.

Constructed with twinax copper and integrated QSFP connectors, these plug-and-play assemblies remove the need for optical transceivers and fiber patch cords, reducing cost and simplifying cabling.

With standard lengths up to 5 m (16 ft), NS 100G DACs are ideal for in-rack or rack-to-rack deployments. They offer ultra-low latency, near-zero power consumption, and strong signal integrity, making them the perfect choice for leaf-spine fabrics, server uplinks, and aggregation networks.

Broad Compatibility

NS 100G DAC cables are fully validated for multi-vendor interoperability, ensuring smooth integration with switches, servers, and NICs from leading vendors including Cisco, Huawei, Juniper, Arista, Dell, Extreme, HPE Aruba, and Fortinet.

This universal compatibility gives network operators the flexibility to build mixed-vendor environments with confidence.

Product Range

• QSFP28 to QSFP28 DAC
  Designed for 100G-to-100G direct connections between switches or between servers and switches, ensuring stable throughput and minimal latency.

• QSFP28 to 4×SFP28 DAC
  Converts one 100G QSFP28 port into four independent 25G SFP28 links, enabling flexible breakout architectures for mixed-speed environments and scalable access layers.

Key Benefits

• Reliable 100G performance: Stable high-speed transmission across 4×25G lanes.

• Flexible options: Choose between 1:1 direct and 1:4 breakout designs.

• Ultra-low latency: Direct electrical path with no optical conversion.

• Energy efficient: Passive twinax design consumes virtually no power.

• Cost savings: Lower total cost compared to optics or AOCs.

• Multi-vendor compatibility: Tested with all major switch and server brands.

Buying Guide

• By type:

  • QSFP28 to QSFP28 for straightforward 100G direct interconnects.

  • QSFP28 to 4×SFP28 for 100G-to-25G breakout applications.

• By length:

  • 1–3 m for in-rack connections.

  • Up to 5 m for short rack-to-rack links.

• Application fit: Well-suited for server uplinks, leaf-spine fabrics, and aggregation networks.

• Expert advice: For bulk rollouts or compatibility checks, consult our team for tailored support.

Conclusion

The 100G QSFP28 DAC Collection provides a balance of performance, efficiency, and cost-effectiveness for short-range 100G connectivity. With direct and breakout configuration, universal compatibility, and reliable copper design, NS DACs are the go-to choice for building flexible, high-performance data centers.

⚡ Choose NS 100G DACs today to simplify your cabling, cut costs, and achieve dependable 100G interconnects.