BlueOptics Q28-AOC-7M-AT-BO InfiniBand fibre optic cable 7m OM3

The BlueOptics Q28-AOC-7M-AT-BO InfiniBand fibre optic cable is a 7 m active optical cable (AOC) with QSFP28 connectors on both ends, designed for high-speed short-reach interconnects in data centers and high-performance computing environments. It uses OM3 multimode fibre with a 50 µm core diameter and supports 100GBASE-SR4 and InfiniBand style high-throughput links. The cable features LSZH (low smoke zero halogen) flame-resistant sheathing and a compact, lightweight construction that simplifies routing within racks and between adjacent racks.

Advantages

The active QSFP28-to-QSFP28 design integrates electrical-to-optical and optical-to-electrical conversion in the connector housings, enabling hot-pluggable operation and eliminating the need for separate transceivers. Compared with direct-attach twinax solutions, this AOC offers improved flexibility, reduced weight, smaller bend radius and a smaller overall diameter for easier cable management. Factory-tested components and compliance with common industry standards ensure consistent signal performance and reliable operation.

Suitable for

• Short-reach 100 Gbps links inside racks or between adjacent racks
• High-performance computing clusters requiring low-latency InfiniBand connectivity
• Data centre top-of-rack and server-to-switch interconnects
• Environments that prefer flame-retardant LSZH cabling for safety

Key specifications

• Cable type: Active Optical Cable (AOC) with QSFP28 connectors both ends
• Length: 7 meters
• Fibre type: OM3 multimode fibre
• Core diameter: 50 µm multimode
• Supported protocols: 100GBASE-SR4 and InfiniBand-compatible high-speed links
• Sheathing: LSZH (low smoke zero halogen), flame resistant
• Connector compatibility: QSFP28 form factor, MSA-compliant
• Physical attributes: lightweight, reduced diameter, small bend radius

How to use

Install the cable by inserting each QSFP28 connector into the corresponding QSFP28 port on network switches, servers or host channel adapters. The connectors are hot-pluggable; ensure ports are powered and configured according to the equipment vendor's instructions before transmitting production traffic. Route the cable following standard data centre cable-management practices to avoid sharp bends and mechanical strain on the connector housings. No additional transceivers are required because optical/electrical conversion is integrated into the cable ends.

Recommendations

Use this AOC for short-distance high-bandwidth interconnects where weight, flexibility and small bend radius are priorities. Avoid exceeding the specified minimum bend radius and keep the LSZH jacket clean to maintain optical performance. Verify equipment compatibility with QSFP28 ports and supported 100G or InfiniBand modes before deployment.