NSComm 400G PAM4 QSFP-DD to 8x50G SFP56 Direct Attach PVC Copper Cable, up to 3m
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- 400G PAM4 QSFP-DD to 8×50G SFP56 Direct Attach Copper Cable (DAC), PVC, Passive, up to 3 m (10 ft)
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Overview
The NSComm 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 | NSComm |
| 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 NSComm 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
Quality Certifications
Do you have any question about the NSComm 400G PAM4 QSFP-DD to 8x50G SFP56 Direct Attach PVC Copper Cable?
Warranty
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Standard Warranty Policy
Original New Sealed Enterprise Hardware: 3 Years
Original New Sealed Consumer Devices: 1 Year
The Support Contacts
If your NSComm products failed, you must contact your sales representative to verify product failure. If the problem still can't correct by remote support methods i.e. email or phone support, the RMA procedure will issue.
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