BlueOptics Compatible Viavi QSFP28-4SFP28-DAC-2M BlueLAN Passive 100GBASE-CR4 QSFP28 to 4x25GBASE-CR SFP28 Direct Attach Breakout Cable, 2 Meter, AWG26

The BlueOptics Q28-4S28-DAC-2M-VA-BL is a high-performance passive Direct Attach Breakout Cable designed for reliable 100G to 4x25G connectivity. This cable is fully compatible with Viavi equipment and part of the BlueLAN series, ensuring seamless integration into existing network infrastructures. With a length of 2 meters and AWG26 construction, it provides a cost-effective and energy-efficient solution for high-speed data center interconnects.

Advantages

This breakout cable offers significant advantages over active optical cables, including zero power consumption, lower cost, and reduced latency. Its passive design ensures plug-and-play operation without the need for external power, making it ideal for short-reach connections within racks or between adjacent racks. The QSFP28 to 4xSFP28 configuration allows for efficient aggregation of 25G links into a single 100G port, maximizing port density and simplifying cable management.

Suitable for

• Data center top-of-rack to server connections
• High-performance computing (HPC) clusters
• Network switches and routers requiring 100G uplinks
• Viavi test and measurement equipment compatibility

Key specifications

• Cable Type: Passive Direct Attach Copper (DAC) Breakout Cable
• Connector A: 1x QSFP28
• Connector B: 4x SFP28
• Data Rate: 100 Gbps aggregate (4x 25 Gbps per lane)
• Ethernet Standards: 100GBASE-CR4 and 25GBASE-CR
• Cable Length: 2 meters (6.56 ft)
• Wire Gauge: AWG26
• Impedance: 100 Ohms
• Power Consumption: 0W (passive)
• Hot-Pluggable: Yes
• Compliance: RoHS, CE, FCC
• Operating Temperature: 0°C to 70°C

Recommendations

For optimal performance, ensure that both the host equipment and the cable are compatible with the QSFP28 and SFP28 form factors. This cable is designed for short-reach applications up to 2 meters; for longer distances, consider active optical cables or transceivers. Always verify compatibility with your specific Viavi model before deployment.