BlueOptics R0Z26A-BL InfiniBand fibre optic cable 5 m QSFP28 Male Male

The BlueOptics R0Z26A-BL InfiniBand fibre optic cable 5 m QSFP28 Male Male is a 5-metre high-speed connectivity cable designed for short-range links in data centers and high-performance computing environments. Featuring QSFP28 male connectors on both ends, the cable supports up to 100 Gbps line-rate interconnects on compatible equipment and is intended for rack-to-rack or within-rack connections where QSFP28 ports are available. The cable is suitable where reliable, low-latency optical links are required for Ethernet, InfiniBand and other compatible high-throughput protocols.

Advantages

The cable combines QSFP28 connectivity with a 5 m length to provide a compact, low-latency optical link that avoids the need for transceivers when used with compatible QSFP28 ports. Manufactured to industry MSA guidelines, it uses components selected for stable signal integrity and long operational life. Passive optical construction reduces power requirements compared with active modular solutions, while the QSFP28 interface maintains compatibility with 100G-capable switches, routers and storage devices that accept QSFP28 direct connections.

Suitable for

• High-performance computing clusters requiring low-latency InfiniBand links
• Data center rack-to-rack and within-rack 100G interconnects
• Connections between switches, routers and storage arrays with QSFP28 ports
• Short-reach 100G Ethernet and InfiniBand applications

Key specifications

• Cable type: Fibre optic cable for QSFP28
• Connector type: QSFP28 male to QSFP28 male
• Length: 5 metres
• Supported protocols: 100G Ethernet, InfiniBand, and compatible high-throughput protocols
• Intended use: Short-range data center interconnects (rack/adjacent rack)
• Design: Passive optical link for low power consumption and low latency

How to use

Install the cable by aligning the QSFP28 male connectors with the corresponding QSFP28 ports on your devices and inserting until they seat securely according to the port manufacturer’s guidance. Ensure ports are powered down or follow hot-plug instructions from the equipment vendor if supported. Configure the connected devices for the intended protocol (Ethernet or InfiniBand) and verify link status and negotiated speed in the device management interface. Avoid sharp bends and maintain recommended bend radius; secure the cable to prevent strain on connectors.

Recommendations

For reliable operation, use this QSFP28 cable within data center environments and between devices that explicitly support QSFP28 direct optical connections at 100G. Inspect connectors for contamination before installation and follow equipment vendor guidelines for hot-plugging and link configuration. When replacing active transceiver solutions, confirm compatibility with the switch or server firmware and test links during maintenance windows to validate performance.