BlueLAN R8M56A-BL 400G QSFP-DD to 4x QSFP56 DAC Breakout Cable 2m HPE Compatible

The BlueLAN R8M56A-BL is a high-performance passive Direct Attach Breakout Cable (DAC) designed for 400G QSFP-DD to 4x100G QSFP56 connectivity. This cable enables seamless breakout from a single 400G port to four independent 100G ports, ideal for high-density data center and HPC environments. It is fully compatible with HPE M-Series switches and servers, offering a cost-effective and reliable solution for high-speed networking.

Advantages

This breakout cable simplifies network architecture by reducing the number of cables and transceivers needed. It supports aggregate data rates of 400 Gbps, with each of the four QSFP56 lanes delivering 100 Gbps. The passive design ensures low power consumption and high reliability, while the 2-meter length provides flexibility in rack installations. HPE compatibility guarantees seamless integration with existing infrastructure.

Suitable for

• Data center interconnects requiring high-density 400G to 100G breakout
• High-performance computing (HPC) clusters
• Enterprise networks upgrading to 400G backbone with 100G leaf switches
• HPE M-Series switch and server deployments

Key specifications

• Cable Type: Passive Direct Attach Breakout Cable (DAC)
• Aggregate Data Rate: 400 Gbps
• Per Lane Data Rate: 100 Gbps
• Connector A: QSFP-DD
• Connector B: 4x QSFP56
• Standards: 400GBASE-CR4 (QSFP-DD end), 100GBASE-CR (QSFP56 end)
• Cable Length: 2 meters
• Cable Material: Copper
• Compatibility: HPE M-Series, HPE R8M56A
• Form Factor: QSFP-DD to 4x QSFP56
• Protocol: Ethernet
• Hot-Pluggable: Yes

Recommendations

For optimal performance, ensure that both ends of the cable are connected to compatible 400G and 100G ports. This cable is ideal for top-of-rack to server connections in high-density environments. Always verify compatibility with your specific HPE equipment before deployment.