Network Switch 400G PAM4 QSFP-DD to 8x50G SFP56 Direct Attach PVC Copper Cable, up to 3m
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Solutions
Features
Low Power Consumption for Energy-saving
400G Data Center Networking Solution for HPC
The solution leverages 400G and 400G DACs with near-zero power consumption and low latency to provide flexible, easy-to-manage network connectivity and high-throughput transmission, meeting the deployment requirements of HPC networks.
400G PAM4 QSFP-DD to 8×50G SFP56 Direct Attach Copper Cable (DAC), PVC, Passive, up to 3 m (10 ft)
Overview
The NS 400G PAM4 QSFP-DD to 8×50G SFP56 Direct Attach Copper Cable (DAC) is a high-density breakout copper solution designed for 400G-to-8×50G Ethernet applications in large-scale data centers, cloud environments, and HPC clusters. With one QSFP-DD connector on one end and eight SFP56 connectors on the other, it enables 400G-to-50G port breakout with unmatched cost efficiency.
Built with twinax copper conductors and a durable PVC jacket, this DAC ensures robust EMI immunity, ultra-low latency, and mechanical flexibility. The passive version supports distances up to 3 m (10 ft) with near-zero power consumption, while active copper versions extend reach up to 5 m (16 ft) consuming ≤ 4 W.
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Key Specifications
| Specification | Details |
|---|---|
| Vendor Name | Network-Switch (NS) |
| Product Type | 400G PAM4 QSFP-DD to 8×50G SFP56 Direct Attach Copper Cable (DAC) |
| Data Rate | 400 Gbps total, breakout into 8×50 Gbps channels (PAM4) |
| Cable Type | Twinax Copper, PVC Jacket, Passive/Active |
| Max Cable Distance | Passive: up to 3 m (10 ft); Active: up to 5 m (16 ft) |
| Conductor AWG Options | 30 AWG (≤ 2 m), 26 AWG (≤ 3 m), 24 AWG (active ≤ 5 m) |
| Connector Type | 1× QSFP-DD to 8× SFP56 |
| Power Consumption | Passive ≈ 0 W, Active ≤ 4 W |
| Temperature Range | 0 °C to 70 °C |
| Standards Compliance | QSFP-DD MSA (SFF-8679), SFP56 MSA (SFF-8432), IEEE 802.3cd/bs, RoHS |
| Applications | 400G-to-50G breakout, server uplinks, switch aggregation, NIC-to-switch |
Why Choose NS 400G QSFP-DD to 8×50G DAC?
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High-density breakout: Converts one 400G port into eight 50G channels.
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Cost-effective: Significant savings over optics and AOCs.
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Ultra-low latency: Direct electrical copper path.
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Energy-efficient: Passive requires no power; active ≤ 4 W.
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Multi-vendor support: Validated with all major networking platforms.
Length Options
Standard stocked lengths:
1 m (3 ft), 2 m (7 ft), 3 m (10 ft)
Extended (active) lengths:
5 m (16 ft)
More Details
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