BlueOptics XXVDACBL2M-BL InfiniBand/fibre optic cable 2 m SFP28 Black

The BlueOptics XXVDACBL2M-BL InfiniBand/fibre optic cable 2 m SFP28 Black is a 2 metre Direct Attach Cable (DAC) with SFP28 connectors designed for short-range, high-speed data links. It supports 25GBase-CR class transmission and is intended for use in racks and adjacent rack interconnects where low latency and reliable electrical signal transfer are required. The cable is a passive twinax copper type with 30 AWG conductors and follows MSA-compliant SFP28 form factor requirements.

Advantages

The cable provides a simple, low-power connectivity option for 25 Gbps links over short distances without active electronics in the cable itself. Its passive design contributes to low power consumption and low latency while reducing potential points of failure. MSA-compliant SFP28 connectors and compatibility with major hardware platforms enable straightforward integration with switches, routers and storage systems that accept SFP28 DACs.

Suitable for

• Short-distance rack-to-rack connections in data centers
• High-speed links between switches and servers supporting SFP28
• InfiniBand, Ethernet and FCoE/Fibre Channel applications up to 25 Gbps over 2 m
• Environments prioritizing low latency and low power consumption

Key specifications

• Length: 2 metres
• Connector type: SFP28 to SFP28
• Transmission class: 25GBase-CR (up to 25 Gbps)
• Cable type: Passive twinax copper (DAC)
• Conductor size: 30 AWG
• Colour: Black
• Form factor: MSA-compliant SFP28

How to use

Install the BlueOptics XXVDACBL2M-BL by inserting each SFP28 connector into the corresponding SFP28 port on the networking devices to be linked. Ensure devices support passive 25G DACs and are powered off or follow hot-plug guidelines from the device manufacturer when inserting or removing the cable. Confirm link status and negotiated speed in device management interfaces after connection. Use the 2 m length for short-span connections such as within racks or between adjacent racks.

Recommendations

For reliable operation, verify device compatibility with passive SFP28 DACs and avoid tight bends or crushing of the twinax cable. Maintain recommended bend radius for 30 AWG twinax cable and route the cable to minimize mechanical stress and airflow obstruction within racks.