NSComm 400G PAM4 QSFP-DD to 2x200G QSFP56 Direct Attach PVC Copper Cable, up to 3m
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- 400G PAM4 QSFP-DD to 2×200G QSFP56 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 2×200G QSFP56 Direct Attach Copper Cable (DAC) is a breakout copper interconnect designed for 400G-to-2×200G Ethernet connectivity in large-scale data centers, cloud infrastructures, and HPC environments.
Built with twinax copper cable and a PVC jacket, it offers 400 Gbps aggregate bandwidth split into two 200G channels via 8×50 Gbps PAM4 lanes. The passive version supports lengths up to 3 m (10 ft) with virtually zero power consumption, making it an ideal choice for short-range, in-rack deployments.
For extended reach, active DACs support up to 5 m (16 ft) while consuming ≤ 4 W per end. Its low latency, robust EMI immunity, and cost advantage over optical solutions make it perfect for high-density interconnect applications.
Compatible Brands
The NSComm 400G QSFP-DD to 2×200G QSFP56 DAC is validated to work seamlessly with switches and servers from Juniper, Arista and Dell.
Need assistance verifying compatibility with your equipment? [Contact Us Now] for direct support.
Key Specifications
| Specification | Details |
|---|---|
| Vendor Name | NSComm |
| Product Type | 400G PAM4 QSFP-DD to 2×200G QSFP56 Direct Attach Copper Cable (DAC) |
| Data Rate | 400 Gbps total, breakout into 2×200 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 2× QSFP56 |
| Power Consumption | Passive ≈ 0 W, Active ≤ 4 W |
| Temperature Range | 0 °C to 70 °C |
| Standards Compliance | QSFP-DD MSA (SFF-8679), QSFP56 MSA (SFF-8665), IEEE 802.3cd/802.3bs, RoHS |
| Applications | 400G-to-200G breakout, aggregation, server-to-switch interconnects |
Why Choose NSComm 400G QSFP-DD to 2×200G DAC?
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Breakout performance: Splits one 400G port into two 200G channels.
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Cost-efficient: Cheaper than optical breakout modules and AOCs.
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Ultra-low latency: Direct copper design with no optical conversion.
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Energy savings: Passive requires no power; active ≤ 4 W.
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Broad interoperability: Validated with all leading switch and server vendors.
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 2x200G QSFP56 Direct Attach PVC Copper Cable?
Warranty
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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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