BlueLAN QSFP-DD to 4x QSFP56 Breakout DAC Cable 400GBASE-CR8 1m Passive Twinax Copper Compatible Cisco

The BlueLAN QDD-4X100G-1M-BL is a high-performance passive direct attach breakout cable (DAC) designed for 400G Ethernet connectivity. It converts a single QSFP-DD port into four independent 100G QSFP56 ports, enabling cost-effective and low-latency interconnects in data centers and high-performance networks. Compliant with 400GBASE-CR8 and 4x100GBASE-CR4 standards, this cable is fully compatible with Cisco equipment and MSA compliant.

Advantages

This breakout cable offers a reliable, plug-and-play solution for high-density networking. Its passive design ensures near-zero power consumption (<0.1W) and minimal heat generation, while the twinax copper construction provides excellent signal integrity over 1 meter. The cable is hot-pluggable and requires no configuration, making deployment quick and easy.

Suitable for

• Data center top-of-rack to server connections
• High-performance computing clusters
• Network aggregation and core switching
• 400G to 4x100G breakout applications

Key specifications

• Product Type: Direct Attach Breakout Cable (DAC)
• Connector A: QSFP-DD
• Connector B: 4x QSFP56
• Data Rate: 400 Gbps aggregate
• Cable Length: 1 meter
• Cable Medium: Twinax Copper
• Standard: 400GBASE-CR8 / 4x100GBASE-CR4
• Compatibility: Cisco, MSA Compliant
• Impedance: 100 Ohm
• Operating Temperature: 0°C to 70°C
• Storage Temperature: -40°C to 85°C
• RoHS Compliant: Yes

Recommendations

For optimal performance, ensure that both ends of the cable are connected to compatible 400G QSFP-DD and 100G QSFP56 ports. This cable is ideal for short-reach interconnects within racks or adjacent racks. Always handle with care to avoid damaging the connectors.