SFP DAC Cable BlueOptics SFP-DAC25-3M-BL 3m SFP28 Male/Male

The BlueOptics SFP-DAC25-3M-BL is a 3-meter passive SFP28 direct attach copper (DAC) cable with male SFP28 connectors on both ends. Designed for short-reach, high-speed interconnects, this 25GBase-CR compatible twinax cable supports electrical signal transmission up to 25 Gbit/s across a 3 m distance and is intended for use in rack-to-rack and adjacent-rack links within data centers and network closets.

Advantages

This SFP28 male-to-male DAC cable provides a low-latency, low-power connection option for short-distance links. The passive twinax construction reduces power consumption and complexity because no active components are required in the cable itself. The cable is built to industry MSA standards for SFP28 form factor compatibility and is suitable for use with hardware platforms that support 25GBase-CR electrical interfaces.

Suitable for

• Short-reach interconnects between switches, routers and storage systems
• Top-of-rack (ToR) and adjacent-rack network links in data centers
• High-speed server uplinks and leaf-spine fabric connections

Key specifications

• Length: 3 meters
• Connector type: SFP28 male to SFP28 male
• Data rate support: up to 25 Gbit/s (25GBase-CR)
• Cable type: passive twinax copper (DAC)
• Wire gauge: 30 AWG

How to use

Install the cable by inserting one SFP28 connector into the SFP28 port of the first device and the other connector into the corresponding port of the second device. Ensure both devices support passive 25GBase-CR DAC connections and that ports are powered off or follow hot-plug guidelines from the device manufacturer when inserting or removing the cable. Verify link status and speed in the device management interface after connection.

Recommendations

Use this passive DAC cable for short-distance fixed links within racks or between adjacent racks. Avoid routing the cable over long distances, around sharp bends, or through areas with mechanical stress. Confirm device compatibility and software support for passive SFP28 DAC modules prior to deployment.