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

The BlueOptics Q28-AOC-7M-CO-BO InfiniBand/fibre optic cable 7m OM3 is a 7‑meter Active Optical Cable (AOC) with QSFP28 connectors on both ends, designed for short‑reach high‑speed interconnects in racks and between adjacent racks. It uses OM3 multimode fibre with a 50 µm core diameter and integrates built‑in electrical‑to‑optical and optical‑to‑electrical conversion within the QSFP28 housings to support 100GBASE‑SR4 Ethernet and InfiniBand links. The cable features a low‑smoke, halogen‑free (LSZH) sheath and a flexible, lightweight construction that provides a smaller bend radius compared to direct‑attach twinax solutions.

Advantages

The Active Optical Cable design reduces weight and increases flexibility compared with direct‑attach copper twinax while maintaining hot‑plug capability. Integrated transceiver electronics follow MSA, SFF and IEEE guidelines to ensure interoperability with compatible QSFP28 ports. The OM3 fibre and internal components are selected from established manufacturers to provide stable signal transmission over the 7 m length, and each cable is factory tested for functionality and compliance with industry standards such as CE and RoHS.

Suitable for

• 100GBASE‑SR4 Ethernet connections in data centers
• InfiniBand high‑performance computing interconnects
• Inter‑rack and intra‑rack links between switches and servers
• Environments requiring low smoke, halogen‑free cabling

Key specifications

• Cable type: Active Optical Cable (AOC) with integrated transceivers
• Connector type: QSFP28 to QSFP28 (hot‑pluggable)
• Fibre type: OM3 multimode
• Core diameter: 50 µm
• Length: 7 meters
• Application: 100GBASE‑SR4 Ethernet, InfiniBand
• Sheath: LSZH (low smoke, zero halogen)
• Bend radius: smaller than comparable DAC solutions (improved flexibility)

How to use

Connect each QSFP28 end into compatible QSFP28 ports on the devices to be linked, ensuring connectors are fully seated and latches engaged. The integrated I/O converters handle the electrical‑to‑optical and optical‑to‑electrical signal conversion automatically; no separate transceivers or module configuration is required. Observe vendor instructions for port enablement and link configuration on switches or host adapters and verify link status through device management interfaces after insertion.

Recommendations

Route the cable to avoid tight bends and mechanical stress; respect the manufacturer’s recommended minimum bend radius. Use AOC connections for short‑reach, high‑speed links up to 7 m and choose OM3‑rated equipment for best performance. Store and handle the QSFP28 connectors with protective caps when not in use to prevent contamination of optical interfaces.