BlueOptics Q28-AOC-7M-FR-BO InfiniBand Fibre Optic Cable 7m OM3 QSFP28

The BlueOptics Q28-AOC-7M-FR-BO InfiniBand Fibre Optic Cable 7m OM3 QSFP28 is an active optical cable (AOC) designed for short-range, high-speed interconnects in data centers and high-performance computing environments. This 7 metre QSFP28-to-QSFP28 cable uses OM3 multimode fibre and integrated optical/electrical conversion to support 100GBASE-SR4 Ethernet and InfiniBand link modes while offering reduced weight and greater flexibility compared with direct-attach twinax solutions. The cable features flame-resistant LSZH sheathing for low smoke and halogen-free behaviour and is manufactured to SFF/MSA and relevant IEEE specifications for compatibility with equipment supporting QSFP28 interfaces.

Advantages

The BlueOptics AOC provides optical signal transmission with built-in I/O and O/E converters in each QSFP28 connector, enabling reliable 100 Gbps links without external transceivers. Its active optical design yields a smaller bend radius, lower weight and greater flexibility compared with DAC cables, simplifying routing inside racks and between adjacent racks. The LSZH jacket reduces fire-related emissions, and factory testing ensures each cable is delivered new and verified for functionality and interoperability.

Suitable for

• High-performance computing clusters and InfiniBand interconnects
• 100GBASE-SR4 Ethernet links within and between server racks
• Top-of-rack and adjacent-rack network connections requiring QSFP28 ports
• Environments where reduced cable weight and tighter bend radius are needed

Key specifications

• Form factor: QSFP28 to QSFP28 active optical cable
• Length: 7 metres
• Fibre type: OM3 multimode
• Transmission: Designed for 100 Gbps (100GBASE-SR4 / InfiniBand high-speed links)
• Sheath: LSZH (low smoke, zero halogen), flame resistant
• Connector features: Built-in optical/electrical conversion (hot-pluggable)
• Compliance: Manufactured to SFF/MSA and common industry specifications for QSFP28 interoperability

How to use

Connect one QSFP28 connector to the QSFP28 port of the source device and the other QSFP28 connector to the destination device. Ensure both ports support the intended 100G or InfiniBand link mode before hot-plugging. Route the cable with attention to the recommended bend radius to preserve optical performance and avoid sharp bends. Because the cable is active and hot-pluggable, no additional transceivers are required; the integrated converters handle the optical-electrical conversion automatically when both ends are connected and the link is negotiated.

Recommendations

Use this AOC for short-range interconnects inside racks or between adjacent racks where 100G capacity is required. Avoid exceeding the specified bend radius, protect connectors from contamination when not in use, and confirm compatibility with QSFP28 ports on your devices. For runs beyond typical rack-to-rack distances consider alternative multimode OM4/OM5 or single-mode solutions as appropriate.