All Active Direct Attach Copper Cable

Low-Latency Links from 10G to 1.6T

Overview

Active Direct Attach Copper (ACC) cables are the go-to choice for short-reach, high-speed networking when you need the simplicity of copper plus extra signal conditioning for higher data rates or longer runs. Built with twinax copper conductors and factory-terminated SFP/QSFP/OSFP connectors, ACC provides plug-and-play deployment with ultra-low latency, avoiding the cost and complexity of separate optical transceivers and fiber patching.

The NSComm ACC lineup spans 10G to 1.6T, covering enterprise networks, data center leaf-spine fabrics, AI/HPC clusters, and InfiniBand/Ethernet interconnects. With multiple form factors and breakout options, you can connect within a rack or between adjacent racks while keeping cabling clean and cost-effective.

NVIDIA-First, Multi-Vendor Ready

Modern AI data centers increasingly standardize on NVIDIA networking, so many NSComm ACC models are optimized for NVIDIA Ethernet and InfiniBand deployments. At the same time, most items support selectable coding options to match different vendor platforms when needed.

Supported ecosystems may include:
NVIDIA/Mellanox, Cisco, Huawei, Juniper, Arista, Dell, H3C, Intel, Extreme, and more (model-dependent via selectable options).

Comprehensive ACC Product Range

Our Active DAC collection includes both straight-through and breakout cables, designed for common real-world topologies:

10G / 25G / 50G (SFP+ / SFP28 / SFP56)

Best for server-to-ToR and access-to-aggregation uplinks, where low latency and easy deployment matter.

• 10G SFP+ ACC (up to 10m)

• 25G SFP28 ACC (up to 9m)

• 50G SFP56 ACC (up to 7m)

40G (QSFP+)

Used for ToR/leaf switch interconnects and legacy 10G fanout.

• 40G QSFP+ ACC (up to 10m)

• 40G QSFP+ to 4×10G SFP+ breakout ACC (up to 9m)

100G (QSFP28) + Breakouts

Ideal for leaf-spine fabrics, high-density ToR, and staged upgrades from 25G/50G.

• 100G QSFP28 ACC (up to 9m)

• 100G to 2×50G breakout ACC (up to 9m)

• 100G to 4×25G breakout ACC (up to 9m)

200G (QSFP56) - NVIDIA-Friendly

A common building block for AI pods, used for GPU cluster networking and high-throughput aggregation.

• 200G QSFP56 ACC (up to 7m) - NVIDIA-focused

• 200G to 2×100G breakout ACC (up to 7m) - InfiniBand HDR capable, NVIDIA-focused

400G (QSFP112 / QSFP-DD) + Breakouts

Designed for modern 400G leaf-spine, core/aggregation upgrades, and dense rack fabrics.

• 400G QSFP112 ACC (up to 3m)

• 400G QSFP-DD ACC (up to 5m)

• 400G QSFP-DD to 2×200G breakout ACC (up to 5m) - NVIDIA-focused

• 400G QSFP-DD to 4×100G breakout ACC (up to 5m)

800G / 1.6T (QSFP-DD / OSFP) - AI/HPC Ready

Built for next-gen AI training networks and hyperscale fabrics, including OSFP finned-top cooling designs.

• 800G QSFP-DD ACC (up to 2m)

• 800G OSFP finned-top ACC (up to 5m) - NVIDIA-focused

• 800G OSFP to 4×200G breakout ACC (up to 5m) - NVIDIA-focused

• 800G OSFP to 2×400G QSFP112 breakout ACC (up to 5m) - NVIDIA-focused

• 800G OSFP to 2×400G OSFP breakout ACC (up to 5m) - NVIDIA-focused

• 1.6T OSFP flat-top InfiniBand XDR ACC (up to 3m) - NVIDIA-focused

Key Benefits of NSComm ACC Cables

• Cost-effective: avoids optics + fiber patching for short links.

• Ultra-low latency: direct electrical interconnect-ideal for AI/HPC traffic.

• Higher reach than passive copper: active design supports more stable links at higher speeds.

• Cleaner cabling: fewer parts, fewer failure points, faster installation.

• Breakout flexibility: split high-speed ports to match 100G/50G/25G endpoints.

• NVIDIA-ready options: built to match mainstream AI networking requirements.

Buying Guide for Active DAC (ACC)

• Pick the speed: 10G/25G/40G/50G/100G/200G/400G/800G/1.6T based on your fabric design.

• Match the form factor: SFP+, SFP28, SFP56, QSFP+, QSFP28, QSFP56, QSFP112, QSFP-DD, OSFP.

• Choose straight vs breakout: breakout is best for phased upgrades and port efficiency.

• Plan the topology:

  • In-rack server-to-ToR links

  • Adjacent rack ToR/leaf interconnects

  • Leaf-spine / core short fabric links

• Select coding: default to NVIDIA for AI networks; keep Generic for special cases.

• Ask engineers: for large projects, we can validate port types, coding, and fabric design.

Conclusion

The All Active Direct Attach Copper Cables (ACC) Collection delivers a complete portfolio from 10G to 1.6T, including straight-through and breakout options across SFP/QSFP/OSFP form factors. With NVIDIA-first support, flexible vendor coding, and real deployment-focused designs, NSComm ACC cables help you build fast, stable, and scalable networks-without the overhead of optics.

⚡ Build high-density, low-latency links with NSComm ACC-ready for enterprise, cloud, and AI fabrics.