DAC cable CBO 470-ABYG 100G, 30 m — direct-attach copper cable for Dell Networking

Direct-attach copper (DAC) cable CBO 470-ABYG 100G, 30 m is a fixed-length, twinax copper cable compatible with Dell Networking ports and designed for short-reach, high-bandwidth interconnects. Rated for 100 Gbit/s throughput over a 30-meter span, this cable provides a predictable physical link between switches, routers and servers in data center and enterprise rack environments. The product supports plug-and-play installation with integrated connectors that match standard QSFP28 form-factor ports used by Dell Networking equipment.

Advantages

This DAC cable offers low latency and stable signal integrity for high-density top-of-rack and leaf-spine architectures without the need for separate transceivers. Its fixed 30 m length reduces insertion variability and simplifies cabling management in structured racks. The copper construction provides reliable performance for short-range 100G links while avoiding the power and cost overhead of active optical modules.

Suitable for

• Short-reach 100G connections between Dell Networking switches and aggregation devices
• Interconnects between servers and top-of-rack switches in data centers
• High-density rack deployments requiring reliable, low-latency links
• Environments where fixed-length, plug-and-play copper links are preferred over optical transceivers

Key specifications

• Data rate: 100 Gbit/s (100G)
• Length: 30 meters
• Connector type: QSFP28-compatible twinax copper connectors (direct-attach)
• Link type: Passive/direct-attach copper (twinax) for short-reach connections
• Typical application: Short-range interconnects in data center and enterprise racks

How to use

Install the DAC cable by inserting each QSFP28-compatible connector firmly into the corresponding Dell Networking port until it latches. No additional configuration or external power is required for basic operation; the link will be recognized by the devices and negotiate 100G operation according to port capabilities. Route the cable along rack cable management paths to avoid sharp bends and mechanical strain on the connectors. For replacements or upgrades, power down devices if recommended by the equipment manufacturer before disconnecting the cable to avoid unintended network interruptions.

Recommendations

Use this 30 m DAC cable for short-reach 100G links within the same room or between adjacent racks. Maintain bend radii recommended for twinax copper and avoid kinks or heavy weight on the cable. Verify compatibility with the specific Dell Networking switch model and firmware level before deployment to ensure proper link negotiation and diagnostics support.