BlueOptics Cisco QDD-2Q200-CU2M BlueLAN Passive 400GBASE-CR8 QSFP-DD to 2x200GBASE-CR4 QSFP56 Direct Attach Breakout Cable, 2m

The BlueOptics Cisco QDD-2Q200-CU2M BlueLAN passive breakout cable is a high-performance direct attach copper (DAC) solution designed for data centers and high-performance networking environments. It enables seamless connectivity between a 400G QSFP-DD port and two 200G QSFP56 ports, providing a cost-effective and low-latency interconnect for next-generation network infrastructures.

Advantages

This breakout cable offers significant advantages over traditional optical transceivers, including lower power consumption, reduced cost, and simplified cable management. The passive twinax design ensures reliable signal integrity over the 2-meter length, while the breakout configuration allows efficient utilization of 400G ports to connect dual 200G devices. It is hot-swappable and fully compatible with Cisco equipment, making it an ideal choice for upgrading or expanding network capacity.

Suitable for

• Data center top-of-rack (ToR) to server connections
• High-performance computing (HPC) clusters
• Enterprise network aggregation
• Cloud and service provider networks
• Any application requiring 400G to 2x200G breakout

Key specifications

• Product Type: Direct Attach Cable (DAC)
• Cable Type: Breakout Cable
• Cable Length: 2 m
• Connector A: QSFP-DD
• Connector B: 2x QSFP56
• Aggregate Data Rate: 400 Gbps
• Breakout Configuration: 1x 400G QSFP-DD to 2x 200G QSFP56
• Ethernet Standard (Connector A): 400GBASE-CR8
• Ethernet Standard (Connector B): 200GBASE-CR4
• Cable Technology: Passive Twinax
• Compatibility: Cisco QDD-2Q200-CU2M equivalent
• Signaling Technology: PAM4
• Number of Lanes (400G side): 8
• Number of Lanes (200G side): 4 per QSFP56
• Hot-Swappable: Yes
• Application: Data Center, High-Performance Networking
• Compliance: IEEE 802.3cd, SFF-8636, SFF-8665

Recommendations

For optimal performance, ensure that both the switch and the connected devices support the required Ethernet standards and breakout functionality. This cable is designed for short-reach interconnects within racks or adjacent racks. Always verify compatibility with your specific hardware before deployment.