DAC cable CBO for Palo Alto Networks SFP28-DAC-3M — 3 m passive direct-attach copper

Passive direct-attach copper (DAC) cable by BlueOptics compatible with the Palo Alto Networks SFP28-DAC-3M form factor. This 3 m passive DAC cable is designed for 25GbE SFP28 ports to provide low-latency, cost-effective short-reach connectivity between switches, routers and servers. The plug-and-play design requires no additional modules, making it suitable for top-of-rack connections and equipment interconnects in data center environments.

Advantages

The cable offers a low-latency electrical connection optimized for 25 Gigabit Ethernet links, with predictable performance for short-reach links. Its passive design reduces power consumption compared with active optics and simplifies deployment since no additional transceivers are required. The 3 m length balances flexibility and signal integrity for typical rack-to-rack or server-to-switch runs. Connectors match the SFP28 form factor for compatibility with equipment that accepts direct-attach copper interfaces.

Suitable for

• Short-reach interconnects between switches within the same rack or adjacent racks
• Server-to-switch connections in data center top-of-rack deployments
• Cost-sensitive 25GbE links where optical transceivers are not required
• Environments requiring low-latency, high-throughput electrical links

Key specifications

• Interface type: SFP28 compatible direct-attach copper
• Nominal data rate: 25 Gigabit Ethernet
• Length: 3 meters
• Cable type: Passive twinax copper
• Connector form factor: SFP28-compatible plug
• Typical application: Short-reach rack and equipment interconnects

How to use

Ensure both endpoints support SFP28 passive DAC modules and 25GbE operation. Power down or follow hot-swap guidelines for your equipment if required by the vendor, then insert the SFP28-compatible plugs into the corresponding ports until they latch. Verify link status on connected devices and configure network settings as needed. If there is no link, check port settings and compatibility, and reseat the cable to eliminate seating issues.

Recommendations

Use this 3 m passive DAC cable for short-distance connections inside racks or between adjacent racks. Avoid tight bends near the connectors and maintain manufacturer-recommended minimum bend radius. For runs longer than the specified length or when immunity to electromagnetic interference is critical, consider optical transceivers or active options.