DAC cable CBO for Palo Alto Networks SFP28-DAC-5M 5 m passive direct-attach copper

BlueOptics passive direct-attach copper (DAC) cable CBO for Palo Alto Networks SFP28-DAC-5M is a 5 m SFP28-form-factor twinax cable designed for 25Gbps links between network devices. It provides a physical copper connection between SFP28 ports on switches, routers and firewalls, delivering low latency and predictable signal behavior for short-reach connections in data centers and enterprise racks.

Advantages

This passive DAC cable offers a cost-effective alternative to optical transceivers and fibers for short distances, with reduced power consumption since no active electronics are required in the cable assembly. Its SFP28 form factor ensures plug-and-play compatibility with equipment that accepts SFP28 direct-attach copper connections, and the fixed 5 m length simplifies cable management in rack-mounted installations. The cable's construction is optimized for reliable 25Gbps operation, producing consistent performance and low latency suitable for high-throughput links.

Suitable for

• Connecting SFP28 ports on switches, routers or firewalls within the same rack or adjacent racks
• Short-reach 25GbE server uplinks and top-of-rack switch links
• High-density data center patching and consolidation where optical transceivers are unnecessary

Key specifications

• Form factor: SFP28 twinax (direct-attach copper)
• Length: 5 m
• Supported data rate: 25 Gbps
• Cable type: Passive copper twinax
• Typical use case: Short-reach interconnects within racks and adjacent racks

How to use

Install the DAC cable by inserting each SFP28 connector into the corresponding SFP28 ports on the network devices until the connectors latch. Ensure devices are powered down or follow hot-plug guidelines provided by the device manufacturer before insertion or removal. Verify link status and negotiate speed and duplex settings on the connected devices; most modern network devices will auto-negotiate 25Gbps operation when using SFP28 direct-attach copper. Route the cable to avoid sharp bends and secure it to prevent strain on the connectors.

Recommendations

Use this passive DAC cable for short-distance, high-speed connections where energy efficiency and low latency are priorities. Avoid using it beyond its intended short-reach range; for longer links, consider optical transceivers and fiber. Confirm compatibility with the specific Palo Alto Networks or third-party hardware and firmware versions before deployment.