BlueOptics AOC-Q56DD-400G-3M-BO InfiniBand fibre optic cable 3m QSFP-DD Male

The BlueOptics AOC-Q56DD-400G-3M-BO InfiniBand fibre optic cable is a 3-meter active optical cable with QSFP-DD male connectors on both ends. Designed for high-throughput environments, this 400GBASE-SR8 compatible cable carries optical signals over multimode fibre and integrates transceiver electronics in each connector to support reliable 400 Gbit/s links. It follows industry MSA connector standards and is intended for short-reach, high-density interconnections within data centre racks and high-performance computing clusters.

Advantages

This QSFP-DD to QSFP-DD active optical cable delivers 400 Gbit/s aggregated bandwidth using parallel multimode transmission, enabling high-density port mapping and reduced cabling complexity. Integrated transmitter and receiver modules on each end remove the need for separate transceivers, simplifying installation and minimizing power and space requirements compared with direct-attach copper at this distance. Compliance with common 400G SR8 signalling makes the cable interoperable with equipment that supports QSFP-DD 400GBASE-SR8 interfaces.

Suitable for

• High-performance computing clusters and InfiniBand fabric interconnects
• Data centre top-of-rack and end-of-row connections
• High-density switch-to-switch and switch-to-server links
• Short-reach 400G Ethernet or Fibre Channel over Ethernet links

Key specifications

• Type: Active Optical Cable (AOC) with QSFP-DD male connectors on both ends
• Length: 3 meters
• Supported data rate: up to 400 Gbit/s aggregated
• Protocol compatibility: 400GBASE-SR8 signalling, compatible with Ethernet and Fibre Channel over Ethernet applications
• Fiber type: multimode fibre with parallel optical lanes
• Connector standard: QSFP-DD form factor supporting high-density ports

How to use

Insert each QSFP-DD connector into the corresponding QSFP-DD port on networking equipment, ensuring the latch engages and the connector is fully seated. Handle the cable by the connector housings and avoid excessive bending of the fibre section; observe the manufacturer’s minimum bend radius. The integrated transceivers are hot-pluggable; after insertion the link should negotiate automatically to the supported 400G mode if both ends and the equipment support 400GBASE-SR8. For compatibility, verify that the networking hardware firmware and port settings are configured to accept active optical cable modules of this type.

Recommendations

Use this AOC for in-rack and adjacent-rack connections where short-reach, high-bandwidth links are required. Keep multimode fibre ends and connector interfaces clean and protected when not in use. Confirm equipment compatibility with QSFP-DD 400GBASE-SR8 interfaces and follow data centre cable management best practices to maintain signal integrity and airflow.