Axiom 400GBASE-SR4.2 QSFP-DD Transceiver for Cisco – QDD-400G-SR4.2-BD-AX

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AxiomSKU: QDD-400G-SR4.2-BD-AX
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Sale price$2,003.99 Regular price$2,420.00

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In stock (20 units), ready to be shipped

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Description

The Axiom 400GBASE-SR4.2 QSFP-DD Transceiver for Cisco delivers ultra-high-speed 400Gb connectivity for modern data center and enterprise networks. Engineered for full OEM compatibility, each module is pre-configured with application-specific coding to ensure seamless integration with Cisco switches and routers. Axiom transceivers are designed to perform, fit, and function identically to the original, offering exceptional reliability at a superior value.

Fully compliant with the QSFP-DD Multi-Source Agreement (MSA), this module supports 400GBASE-SR4.2-BX network technology, enabling efficient, high-bandwidth data transmission across short-distance multimode fiber (MMF). It is ideal for data-intensive applications, cloud connectivity, and high-performance computing environments requiring consistent throughput and dependable performance.

Axiom’s commitment to quality includes unique product serialization, eliminating communication conflicts while simplifying device identification. Offering guaranteed compatibility and dependable optical performance, this module ensures maximum productivity and long-term network stability.

Specification Details
SKU QDD-400G-SR4.2-BD-AX
Product Type QSFP-DD 400G Optical Transceiver
Data Rate 400 Gigabit Ethernet
Optical Standard 400GBASE-SR4.2
Wavelength Bidirectional SR4.2 (2-λ per fiber pair)
Fiber Type Multimode Fiber (MMF)
Typical Reach Short-distance applications (varies by MMF type)
Interface QSFP-DD
Connector Type MPO/MTP
Application High-performance data networking
Compatibility 100% OEM-compatible, including Cisco
MSA Compliance QSFP-DD MSA
Serialization Unique transceiver serialization for device tracking
Use Case Data centers, cloud infrastructure, audio/video transport, intra-building connectivity
Operating Environment Ideal for short-range, high-bandwidth optical links

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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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