Description
The Axiom 400GBase-LR4 QSFP-DD Transceiver (QDD-400GB-LR4-AX) delivers exceptional performance, long-reach capability, and full MSA compliance for modern high-bandwidth networks. Engineered to be 100% compatible with OEM platforms, it provides seamless integration, identical functionality, and reliable operation across multi-vendor environments.
This 400Gbps LR4 module enables high-speed optical links over single-mode fiber, supporting long-distance data transmission with minimal signal degradation. Its QSFP-DD form factor ensures high-density connectivity, making it ideal for data centers, cloud environments, hyperscale networks, and enterprise infrastructures requiring scalable bandwidth.
Every module features unique serialization and OEM-specific coding to ensure proper identification and prevent network conflicts. Axiom transceivers conform strictly to the Multi-Source Agreement (MSA), guaranteeing interoperability with any MSA-compliant equipment.
Designed for performance, built for compatibility, and optimized for maximum network efficiency.
| Specification | Details |
|---|---|
| SKU | QDD-400GB-LR4-AX |
| Product Type | QSFP-DD 400G Optical Transceiver |
| Data Rate | 400Gbps |
| Transmission Standard | 400GBase-LR4 |
| Wavelength | 4-lane LWDM |
| Reach | Up to 10 km (over SMF) |
| Fiber Type | Single-Mode Fiber (SMF) |
| Connector Type | Duplex LC |
| Application | High-speed optical networking, data center interconnect, cloud, enterprise |
| Compatibility | 100% OEM compatible; MSA compliant |
| Coding | OEM-specific pre-configured application code |
| Key Benefits | Long-reach transmission, high data throughput, network reliability |
| Form Factor | QSFP-DD |
| Operating Environment | Data centers, enterprise networks, optical backbone |
Payment & Security
Your payment information is processed securely, and we do not store credit card details or access your credit card information.
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.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
A decade of delivery — trusted by 275+ clients across industries
