Description
The AddOn Cisco® QDD-400G-FR4-S Compatible QSFP-DD transceiver delivers high-performance 400GBase-FR4 connectivity for modern data center, enterprise, and carrier networks. Designed for use over single-mode fiber (SMF), it supports data transmission distances up to 2km using a 1310nm wavelength via an LC duplex connector.
This hot-pluggable, easy-to-install transceiver is fully compliant with INF-8628 and MSA standards and is guaranteed to operate identically to the OEM version. Each unit is programmed, uniquely serialized, and rigorously tested for data traffic and application performance, ensuring seamless integration and reliable operation.
Digital Optical Monitoring (DOM) functionality provides real-time insight into key operating parameters, while robust ESD protection, low EMI metal housing, and RoHS compliance ensure safety and durability. TAA compliance makes it suitable for government and public sector deployments. Backed by AddOn’s industry-leading quality assurance and limited lifetime warranty, this transceiver is an ideal solution for scalable 400G optical networking infrastructure.
| Specification | Description |
|---|---|
| SKU | QDD-400G-FR4-S-AO |
| Form Factor | QSFP-DD |
| Data Rate | 400GBase-FR4 |
| Wavelength | 1310nm |
| Reach / Distance | Up to 2km |
| Connector | Duplex LC |
| Fiber Type | Single-Mode Fiber (SMF) |
| Operating Temperature | 0°C to 70°C (Commercial) |
| Digital Optical Monitoring (DOM) | Supported |
| Hot-Pluggable | Yes |
| Compliance | INF-8628, MSA, TAA, RoHS |
| Power Consumption | 12W |
| Modulation | PAM4 |
| Lane Signaling Rate | 26.5625 GBd per lane |
| Pre-FEC BER | 2.4 × 10⁻⁴ |
| Post-FEC BER | 1 × 10⁻¹² |
| Connector Interface | Duplex LC |
| Applications | 400G Ethernet, Access Networks, Enterprise Data Centers |
| Warranty | Limited Lifetime Warranty |
Payment & Security
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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.
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
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