DAC cable CBO AX-F0110-3Q1CU3M 3 m QSFP direct-attach copper

Direct-attach copper (DAC) cable CBO AX-F0110-3Q1CU3M is a 3‑metre QSFP-rated fixed-length interconnect designed for short-range, high-speed links between network switches, routers and servers. The passive copper assembly eliminates the need for separate optical transceivers, providing a low-latency and power-efficient physical connection for data centre top-of-rack and cross-rack applications. The cable's QSFP form factor and 3 m length simplify rack-to-rack or device-to-device cabling while maintaining signal integrity for multi-gigabit links.

Advantages

This DAC cable provides a cost-effective and low-power option for creating high-speed links over short distances. By using a direct-attach copper design, it reduces installation complexity since no separate modules are required. The fixed-length construction ensures consistent signal performance and simplifies cable management in dense rack environments. The QSFP compatibility supports multi-lane high-throughput applications while offering predictable latency and reduced heat compared with active optical solutions.

Suitable for

• Top-of-rack connectivity in data centres
• Cross-rack short-distance links between switches and routers
• Direct server-to-switch connections for high-throughput applications
• Temporary test and lab environments requiring reliable short-range interconnects

Key specifications

• Connector type: QSFP direct-attach copper
• Length: 3 m fixed
• Cable medium: copper twinax assembly (passive)
• Use case: short-range high-speed links (multi-gigabit lanes)
• Typical characteristics: low latency, low power consumption, plug-and-play installation

How to use

Plug each QSFP connector into the appropriate QSFP port on the network devices, ensuring secure seating and alignment with the port guides. The cable is intended for short, fixed-length connections; avoid excessive bending or tension near the connector boots. After insertion, verify link status on the connected devices and confirm negotiated speeds. No additional transceivers or configuration at the physical layer are required beyond standard port settings.

Recommendations

Use the DAC cable for interconnects up to the specified 3 m distance, route it to minimize sharp bends and avoid sources of electromagnetic interference. For permanent long-distance links or where optical isolation is required, consider optical transceiver-based solutions instead.