DAC cable CBO SFP28-DAC-5M 5 m Passive — SFP28 Direct Attach Copper cable, passive, 5 meters

CBO SFP28-DAC-5M is a 5 m passive Direct Attach Copper (DAC) cable engineered for short-range, high-speed connectivity between devices with SFP28 ports. The cable provides a fixed copper link capable of supporting 25Gb/s per lane, making it suitable for direct connections between switches, servers and network appliances where low latency and reliable signal integrity are required. Its passive design minimizes power consumption while delivering consistent performance for data center and network rack environments.

Advantages

The passive SFP28 DAC cable delivers a cost-effective alternative to optical transceivers for short distances, eliminating the need for separate fiber modules and patch cords. By offering low latency and stable transmission at 25Gb/s, it simplifies cabling in dense rack deployments and reduces overall component count. The 5 metre length balances reach and manageability, enabling tidy top-of-rack and server-to-switch cabling while maintaining signal quality without active electronics.

Suitable for

• Top-of-rack switch to server connections in data centers
• Server-to-switch links within racks and adjacent racks
• Aggregation and spine connections where short fixed copper links are acceptable
• Environments requiring low-latency, high-throughput direct links

Key specifications

• Interface type: SFP28 on both ends
• Length: 5 metres
• Type: Passive Direct Attach Copper (DAC)
• Data rate: supports 25Gb/s per lane
• Connector: fixed twinax copper assembly with integrated connectors
• Typical application: short-range interconnects in racks and data centers

How to use

Insert each SFP28 connector into compatible SFP28 ports on the target devices until they latch securely. Ensure devices are powered down or follow live-insertion guidelines from the equipment vendor if supported. Route the 5 m cable to avoid sharp bends and mechanical stress; maintain recommended bend radius and secure the cable to prevent strain on connectors. Verify link status on both devices and confirm negotiated speed and link state through the host equipment management interface.

Recommendations

Use this passive SFP28 DAC cable for short, fixed connections inside racks or between adjacent racks. Verify compatibility with the host equipment’s supported SFP28 DAC modules and firmware; consult switch and server vendor documentation if required. Avoid exposure to excessive temperature, moisture or physical strain to preserve connector integrity and signal performance.