100G QSFP28 to 4x25G SFP28 passive DAC cable for short-range data center connectivity.
When high-density switch uplinks require breakout connectivity without expensive optical transceivers, passive copper cabling offers a reliable alternative. The LRDAC-QSFP28-4SFP28-3M direct attach copper cable solves this by enabling efficient rack-level interconnections.
This 3-meter breakout cable supports 100G QSFP28 to 4x25G SFP28 transmission with four independent duplex channels operating at 25Gbps, ensuring full bandwidth utilization. Its all-metal housing delivers superior EMI performance, while +3.3V single power supply operation minimizes energy consumption compared to active optical solutions.
Ideal for 100 Gigabit Ethernet and InfiniBand EDR applications, this MSA-compliant DAC cable provides stable, low-latency connectivity for storage and serial data environments. It enables cost-effective scaling of data center fabric architectures.
Connects one 100G QSFP28 port to four 25G SFP28 ports for flexible switch uplink deployment.
Passive copper design with +3.3V single power supply reduces energy usage versus optical modules.
All-metal housing construction ensures signal integrity in high-density data center environments.
Fully compliant with QSFP28 and SFP28 MSA specifications for broad interoperability.
Complete technical details for integration and deployment planning.
| Product Type | Direct Attach Copper Cable |
|---|---|
| Cable Length | 3 meters |
| Connector A | QSFP28 |
| Connector B | 4x SFP28 |
| Data Rate | 100G QSFP28 to 4x25G SFP28 |
|---|---|
| Channel Configuration | 4 independent duplex channels operating at 25Gbps |
| Bit Error Rate | E-12 |
| Supply Voltage | +3.3V |
|---|---|
| Power Supply Voltage Range | 3.14V to 3.46V |
| Signal Coupling | AC coupled inputs and outputs |
| Protocol Support | QSFP28 MSA, SFP28 MSA |
|---|---|
| Feature Support (Yes) | RoHS Compliant |
| Operating Case Temperature | 0℃ to +70℃ |
|---|---|
| Storage Temperature | -40℃ to +85℃ |
| Housing | All-metal housing for superior EMI performance |
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