BLUEOPTICS Compatible Cumulus QSFP28-4SFP28-DAC-1M BlueLAN Passive 100GBASE-CR4 QSFP28 to 4x25GBASE-CR SFP28 Direct Attach Breakout Cable, 1 Meter, AWG26 (Q28-4S28-DAC-1M-CN-BL)

The BLUEOPTICS Q28-4S28-DAC-1M-CN-BL is a high-performance passive Direct Attach Copper (DAC) breakout cable designed for 100 Gigabit Ethernet applications. It connects a QSFP28 port to four SFP28 ports, enabling cost-effective and low-latency connectivity in data centers and high-performance computing environments. This cable is MSA compliant and compatible with Cumulus and other networking equipment.

Advantages

This breakout cable offers a reliable and energy-efficient solution for high-speed data transmission. With a length of 1 meter and AWG26 gauge, it provides flexibility in rack configurations while maintaining signal integrity. The passive design ensures near-zero power consumption, reducing overall system power draw.

Suitable for

• Data center interconnects
• High-performance computing (HPC) clusters
• Network switches and servers requiring 100G to 4x25G breakout
• Top-of-rack to server connections

Key specifications

• Cable Type: Direct Attach Copper (DAC), Passive
• Connector A: QSFP28
• Connector B: 4x SFP28
• Aggregate Data Rate: 100 Gbps
• Per Lane Data Rate: 4x 25 Gbps
• Ethernet Standard: 100GBASE-CR4 (QSFP28), 25GBASE-CR (SFP28)
• Wire Gauge: AWG26
• Cable Length: 1 Meter (3.3 ft)
• Impedance: 100 Ohm
• Operating Temperature: 0°C to 70°C (32°F to 158°F)
• Power Consumption: < 0.5W (typical)
• Voltage Supply: 3.3V (from host)
• RoHS Compliant: Yes

Recommendations

For optimal performance, ensure that both the QSFP28 and SFP28 ports support the respective standards. This cable is ideal for short-reach breakout applications within a rack or adjacent racks.