BlueOptics AXLC761-BL InfiniBand fibre optic cable 1 m QSFP Male Male

The BlueOptics AXLC761-BL InfiniBand fibre optic cable is a 1 m link featuring QSFP male connectors on both ends. Designed for short-reach high-speed links, this cable supports InfiniBand and 40GBase-CR4 signaling and is suitable for direct-attach connections between rack equipment. The construction follows MSA-compliant specifications for QSFP interconnects and is intended for use where reliable, low-latency data transfer is required in data center and high-performance computing environments.

Advantages

This 1 m cable provides a passive direct-attach solution with QSFP-to-QSFP male connectors that enables up to 40 Gbps link speeds over a short distance. The cable is built to MSA-compliant mechanical and electrical standards and uses quality components to achieve stable connectivity and long operational life. Low power consumption and low latency typical of passive twinax/direct-attach interconnects make it suitable for dense rack deployments and adjacent-rack links where cost-effectiveness and predictable performance are important.

Suitable for

• Connecting QSFP ports between switches and routers within the same rack or adjacent racks
• High-performance computing nodes and InfiniBand-enabled servers
• Storage systems and network appliances that support 40GBase-CR4 / InfiniBand DAC connections
• Short-reach 40 Gbps Ethernet, FCoE or Fibre Channel links where passive DACs are supported

Key specifications

• Cable type: passive direct-attach twinax (DAC)
• Connector type: QSFP (male) to QSFP (male)
• Length: 1 meter
• Supported protocols: InfiniBand, 40GBase-CR4, Ethernet, FCoE, Fibre Channel (up to 40 Gbps)
• Wire gauge: 30 AWG twinax conductor
• MSA-compliant mechanical and electrical profile for QSFP interconnects
• Typical use: short-range rack and adjacent-rack connections with low latency

How to use

Ensure both endpoints (switches, routers, servers or storage systems) have QSFP ports that explicitly support passive QSFP direct-attach twinax cables. With equipment powered down or following the manufacturer's hot-plug guidance, insert each QSFP male connector into the corresponding QSFP port until the latch engages. After physical installation, verify link negotiation and speed in the device management interface and monitor for correct lane mapping and error counters. If the host requires specific firmware or vendor settings to accept third-party DACs, apply those firmware or configuration steps as directed by the hardware vendor.

Recommendations

Use this cable for short, high-bandwidth interconnects inside racks or between adjacent racks. Avoid tight bends and maintain the manufacturer’s minimum bend radius for twinax cables to preserve signal integrity. Confirm compatibility with the specific hardware platform and firmware level before deployment to ensure full functionality.