InfiniBand/fibre optic cable BlueOptics XS+DA0005-BL 5 m SFP28

The BlueOptics XS+DA0005-BL 5 m SFP28 cable is a high-speed direct attach solution for short-reach connections in racks and between adjacent racks. Designed for 25G applications, this passive twinax cable features SFP28 connectors on both ends and a 30 AWG conductor, providing a low-latency, low-power link for switches, routers and storage systems that support SFP28 25GBase-CR or equivalent InfiniBand/fibre optic interfaces. The cable is suitable for environments requiring reliable transmission of electrical signals over a 5 meter distance.

Advantages

This 5 m SFP28 direct attach cable offers simple, passive connectivity without onboard active electronics, which reduces power consumption and failure points. Manufactured to MSA-compliant specifications with high-quality materials, it provides consistent performance for Ethernet, FCoE, Fibre Channel and InfiniBand up to 25 Gbit/s on short links. The compact twinax construction delivers low latency and predictable signal integrity while keeping acquisition and operational costs lower compared with active optical transceivers for equivalent short-distance links.

Suitable for

• Short-reach 25 Gbit/s links between rack-mounted switches and servers
• Direct connections in adjacent racks and top-of-rack installations
• High-bandwidth storage networks and SAN uplinks
• InfiniBand interconnects and data center aggregation links

Key specifications

• Connector type: SFP28 on both ends
• Length: 5 meters
• Type: Passive twinax (direct attach copper)
• Data rate support: up to 25 Gbit/s
• Conductor gauge: 30 AWG
• Standards: 25GBase-CR / SFP28 MSA compliant
• Typical power consumption: near 0.1 W (passive cable)

How to use

Insert each SFP28 connector firmly into the corresponding SFP28 ports on the devices to be linked, ensuring the latch engages. Use this cable for short-distance electrical connections where both endpoints explicitly support passive 25GBase-CR SFP28 DACs. Verify device firmware and port settings accept passive DACs and configure link speed/auto-negotiation as required by your network equipment. Avoid excessive bending or tension on the cable and maintain recommended bend radius to preserve signal integrity.

Recommendations

For reliable operation, confirm device compatibility with passive 25G DACs and test links after installation. Route the cable to minimize interference from power sources and heavy airflow, and periodically inspect connectors for contamination. For longer distances or where active signal conditioning is required, consider active cables or optical transceivers and appropriate fiber cabling.