InfiniBand/fibre optic cable BlueOptics 02310MUK-BL 1 m SFP 4 x SFP+

The BlueOptics 02310MUK-BL is a 1 m InfiniBand/fibre optic Direct Attach Cable (DAC) with an SFP connector on one end and 4 x SFP+ on the other. Designed for short-distance, high-speed data links in racks and adjacent rack rows, this cable supports up to 40 Gbit/s aggregate throughput using a QSFP-to-4xSFP+ configuration and is suitable for Ethernet, FCoE, Fibre Channel and InfiniBand environments where the host hardware supports passive DAC solutions.

Advantages

This 1 m DAC offers low power consumption, low latency and a compact physical form that simplifies rack cabling. Manufactured to common MSA standards and populated with high-quality components, the cable provides stable signal transmission for short-range interconnects and a lifespan consistent with professional data center cabling. Passive twinax construction avoids active modules, reducing complexity and failure points while keeping acquisition and operational costs lower than active transceivers with separate optic modules.

Suitable for

• High-density switch-to-switch connections inside a rack
• Server-to-switch connections in adjacent rack deployments
• Top-of-rack aggregation links and short storage system connections
• Environments requiring support for 40GBase-CR4 or 4x10GBASE-CR applications

Key specifications

• Cable length: 1 metre
• Connector configuration: QSFP (to host) split to 4 × SFP+
• Data rate support: up to 40 Gbit/s aggregate (4 × 10 Gbit/s lanes)
• Cable type: passive twinax copper (30 AWG)
• Supported protocols: Ethernet, FCoE, Fibre Channel, InfiniBand (dependent on hardware support)
• Compliance: MSA-compliant mechanical and electrical interfaces

How to use

Insert the QSFP end into the compatible QSFP port of the switch or aggregation device and connect the 4 × SFP+ ends to the corresponding SFP+ ports on the target device or server. Ensure both endpoints officially support passive DAC twinax connections and the intended data rate (40GBase-CR4 or 4×10G). Handle the cable by the connectors and route it to avoid sharp bends; maintain the minimum bend radius specified by your rack cabling standards. No external power or transceiver configuration is required for passive operation, but check the host firmware and hardware compatibility list if devices enforce vendor checks.

Recommendations

Use this 1 m BlueOptics DAC for short, high-bandwidth links inside racks or between adjacent racks. Confirm device compatibility first, keep cable runs short to preserve signal integrity, and avoid tight bends or mechanical stress to extend operational life.