AddOn MSA and TAA Compliant 400GBase-CU QSFP-DD 400G to 8xSFP56 Direct Attach Cable (Passive Twinax, 2.5m)

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Add-OnSKU: QDD8SFP56PDAC2-5M-AO
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Description

The AddOn 400GBase-CU QSFP-DD to 8xSFP56 Direct Attach Cable (2.5m) is a high-performance interconnect solution designed for data centers and enterprise networking environments. This passive copper twinax cable supports 400Gbps throughput, enabling efficient, low-latency connections between QSFP-DD and SFP56 network devices. Built to MSA standards and fully TAA compliant, this cable ensures compatibility, reliability, and regulatory compliance. Each unit is individually tested, serialized, and quality assured for seamless performance in demanding networking applications.

With its 8.2ft (2.5m) length, it provides the flexibility needed for short-distance, high-bandwidth connectivity while minimizing power consumption and latency compared to optical alternatives. Backed by AddOn’s lifetime warranty, it delivers long-term value and trusted performance.

Category Details
Manufacturer AddOn
Part Number QDD8SFP56PDAC2-5M-AO
Brand Name AddOn
Product Type Twinaxial Network Cable
Cable Type Twinaxial (Passive Copper)
Cable Length 2.5m (8.2 ft)
Connector (First End) 1 × QSFP-DD Network – Male
Connector (Second End) 8 × SFP56 Network – Male
Data Transfer Rate 400 Gbit/s
Device Supported Network Devices, Transceivers
Features Passive, Hot-Swappable, MSA & TAA Compliant
Material Copper
Dimensions (LxWxH) 98.4" × 0.5" × 0.5"
Weight ~0.30 lb
Certifications MSA Compliant, TAA Compliant
Warranty Lifetime Limited Warranty
Product Condition New and Factory Fresh
Packaged Quantity 1

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Return Policy (Short Summary)

We offer a 30-day return window for most unopened, factory-sealed items.

Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.


Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.


For damaged or incorrect items, please contact us immediately.


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