Network Switch 400G PAM4 QSFP-DD to QSFP-DD Direct Attach PVC Copper Cable, up to 3m
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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 QSFP-DD Direct Attach Copper Cable (DAC), PVC, Passive, up to 3 m (10 ft)
Overview
The NS 400G PAM4 QSFP-DD to QSFP-DD Direct Attach Copper Cable (DAC) is a cost-effective, ultra-low latency solution for 400 Gigabit Ethernet short-reach interconnects in hyperscale data centers and high-performance computing clusters. Built with twinax copper cable and a durable PVC jacket, it delivers 400 Gbps of bandwidth across 8×50 Gbps PAM4 lanes, making it ideal for top-of-rack (ToR) and middle-of-row (MoR) deployments.
The passive DAC supports lengths up to 3 m (10 ft) with negligible power draw, while active DACs extend reach up to 5 m (16 ft) at ≤ 4 W per end. This design ensures excellent EMI immunity, consistent latency, and significant cost savings compared to optical transceivers.
Compatible Brands
The NS 400G QSFP-DD DAC is validated for compatibility with devices from Cisco, Huawei, Juniper, Arista, Dell and Nvidia.
Need help confirming compatibility with your hardware? [Contact Us Now] for tailored support.
Key Specifications
| Specification | Details |
|---|---|
| Vendor Name | Network-Switch (NS) |
| Product Type | 400G PAM4 QSFP-DD to QSFP-DD Direct Attach Copper Cable (DAC) |
| Data Rate | 400 Gbps (8×50 Gbps PAM4 lanes) |
| 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 | QSFP-DD to QSFP-DD |
| Power Consumption | Passive ≈ 0 W, Active ≤ 4 W |
| Temperature Range | 0 °C to 70 °C |
| Standards Compliance | QSFP-DD MSA (SFF-8679), IEEE 802.3bs, RoHS |
| Applications | 400G switch-to-switch, server uplinks, spine-leaf aggregation |
Why Choose NS 400G QSFP-DD DAC?
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Ultra-high bandwidth: 400 Gbps across 8×50 Gbps PAM4 lanes.
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Cost-effective: Lower cost than optical transceivers and AOCs.
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Ultra-low latency: Direct copper path with no optical conversion.
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Energy efficiency: Passive consumes no power; active ≤ 4 W.
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Broad compatibility: Tested with all major 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
Warranty
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Returns
You have the right to return products purchased from Network-switch.com under the following conditions:
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Return Process: To initiate a return, please contact our customer support team at help@network-switch.com. You will be provided with instructions on how to return the product and obtain a return authorization number if necessary.
Refunds
Refund Process: Once we receive your returned item and inspect it, we will process your refund to the original method of payment within 7-10 business days.
Refund Conditions: Refunds will be issued for the purchase price of the item, excluding any shipping, handling, or other additional fees. If the product is returned damaged, used, or missing parts, a partial refund may be issued.
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Email: help@network-switch.com
Before returning any products, please contact us to explain the issues you are experiencing. In many cases, we can resolve the problem through technical support, and you won't need to return the product.
If there are irreparable defects in the device, you can return it to us for repair or replacement under our twelve-month warranty. Simply reach out to us, and we will provide you with a return code, our return address, and any additional instructions.
Please do not return any items without first contacting us. We will guide you through the process, including the appropriate shipping methods.