BlueOptics DAC-Q28-4SFP28-25G-1M Compatible BlueLAN QSFP28 DAC SC282701L1M26 InfiniBand Cable 4xSFP28 Black

The BlueOptics DAC-Q28-4SFP28-25G-1M is a high-performance Direct Attach Copper (DAC) breakout cable designed for demanding data center and high-performance computing environments. This passive copper cable provides a cost-effective, low-power solution for short-range interconnects, converting a single QSFP28 port into four SFP28 ports. With support for InfiniBand and Ethernet protocols, it delivers aggregate data rates of up to 100 Gbps (4x 25 Gbps per lane). The cable is fully compatible with BlueLAN equipment and meets MSA standards, ensuring seamless integration into existing networks.

Advantages

This DAC breakout cable offers several key benefits: low power consumption (<0.5W), hot-pluggable design for easy installation, and robust construction with 30 AWG gauge and 100 Ohm impedance for reliable signal integrity. The black color and 1-meter length make it ideal for rack-to-switch or server-to-switch connections in dense environments.

Suitable for

• Data center interconnects
• High-performance computing (HPC) clusters
• Network Attached Storage (NAS) systems
• Server-to-switch connections

Key specifications

• Cable Type: Direct Attach Copper (DAC) Breakout Cable
• Connector A: QSFP28
• Connector B: 4x SFP28
• Data Rate per Lane: 25 Gbps
• Aggregate Data Rate: 100 Gbps
• Cable Length: 1 Meter
• Cable Color: Black
• Protocol Support: InfiniBand, Ethernet
• Transceiver Type: Passive Copper
• Hot-Pluggable: Yes
• Compatibility: BlueLAN compatible, MSA Compliant
• Cable Gauge (AWG): 30 AWG
• Impedance: 100 Ohm
• Voltage Supply: 3.3V
• Power Consumption: <0.5W
• Operating Temperature: 0°C to 70°C (32°F to 158°F)
• Storage Temperature: -40°C to 85°C (-40°F to 185°F)
• Compliance: RoHS, CE, FCC, MSA Compliant

Recommendations

For optimal performance, ensure that both the QSFP28 and SFP28 ports are compatible with passive DAC cables. This cable is an excellent choice for short-distance, high-speed connections within a rack or between adjacent racks.