BlueOptics CBL-NTWK-0892-OPC30-BL InfiniBand/fibre optic cable 3 m QSFP28 Male/Male

The BlueOptics CBL-NTWK-0892-OPC30-BL InfiniBand/fibre optic cable is a 3 m QSFP28 Male/Male link designed for high-speed data transmission in racks and adjacent rack connections. It supports 100G applications including Ethernet, FCoE, Fibre Channel and InfiniBand on short distances and is intended for use with hardware that accepts QSFP28 direct-attach connections. The cable uses a twinax copper/passive design compatible with MSA QSFP28 interfaces and is suitable for data centre top-of-rack and adjacent-rack interconnects where low latency, low power consumption and reliable 100G links are required.

Advantages

This 3 m QSFP28 Male/Male cable provides a direct-attach solution for 100GBase-CR4 connections with low latency and minimal power draw. Manufactured to MSA-compliant specifications, it offers interoperability with major hardware platforms that support QSFP28 direct attach cables. The passive twinax construction reduces complexity and failure points while delivering predictable electrical performance at short distances. High-quality components and testing ensure consistent functionality and long service life suitable for professional networking environments.

Suitable for

• Top-of-rack and adjacent-rack switch interconnects
• High-density server-to-switch links in data centres
• Storage array connections supporting 100G protocols
• InfiniBand clusters and high-performance computing interconnects
• Short-reach 100G Ethernet, FCoE and Fibre Channel links

Key specifications

• Cable length: 3 meters
• Connector type: QSFP28 Male to QSFP28 Male
• Supported data rate: up to 100 Gbit/s
• Application: 100GBase-CR4, Ethernet, FCoE, Fibre Channel, InfiniBand
• Cable type: passive twinax/direct attach copper
• Wire gauge: 26 AWG
• MSA-compliant QSFP28 electrical interface

How to use

Insert each QSFP28 connector into the corresponding QSFP28 port on your network devices until the latch engages. Use the cable for short-distance connections within racks or between adjacent racks, observing the 3 m maximum distance for guaranteed 100G performance. Ensure the connected devices support passive DAC twinax QSFP28 modules and the intended protocols (Ethernet, FCoE, Fibre Channel or InfiniBand). Handle the cable by the connector housings and avoid sharp bends; maintain the recommended bend radius to preserve signal integrity.

Recommendations

Verify device compatibility with QSFP28 passive direct-attach cables before deployment. Route the cable to minimize stress and interference from power cables, and perform link testing after installation to confirm 100G operation. For installations requiring longer reach or optical isolation, consider active optical cables or transceiver-plus-fibre solutions instead of passive twinax DACs.