Description
The AddOn Cisco® QDD-400G-DR4-S Compatible QSFP-DD Transceiver delivers exceptional 400GBase-DR4 performance over single-mode fiber (SMF) with transmission distances up to 500 meters using a 1310nm wavelength via an MPO-12 connector. Designed to meet or exceed OEM specifications, this transceiver ensures seamless integration into Cisco® network environments and is fully compliant with IEEE 802.3bs, QSFP-DD MSA, and CMIS 4.0 standards.
Each unit is programmed, uniquely serialized, and rigorously tested to guarantee identical initialization and operation as the original Cisco® module. It supports Digital Optical Monitoring (DOM) for real-time performance tracking and is TAA compliant, making it ideal for government and enterprise deployments. With robust ESD protection, low power consumption, and reliable Class 1 laser safety, this module is a high-performance solution for data center, enterprise, and access network applications.
| Specification | Details |
|---|---|
| SKU | QDD-400G-DR4-S-AO |
| Brand | AddOn |
| Compatible OEM | Cisco® |
| Form Factor | QSFP-DD |
| Data Rate | 400GBase-DR4 |
| Wavelength | 1310nm |
| Fiber Type | Single-Mode Fiber (SMF) |
| Connector Type | MPO-12 |
| Maximum Distance | Up to 500m |
| Compliance Standards | IEEE 802.3bs, QSFP-DD MSA, CMIS 4.0 |
| DOM Support | Yes |
| Operating Temperature | 0°C to 70°C |
| Power Dissipation | Max. 9 W |
| Hot-Plug Current (Peak) | 3600 mA |
| Supply Voltage | 3.135V – 3.465V |
| Center Wavelength Range | 1304.5nm – 1317.5nm |
| Extinction Ratio (Per Lane) | ≥ 3.5 dB |
| Receiver Sensitivity (OMAouter) | ≤ -4.4 dBm |
| Transmit OMAouter (Per Lane) | -0.8 dBm to 4.2 dBm |
| TAA Compliant | Yes |
| RoHS Compliant / Lead-Free | Yes |
| Application | Data Center, Access, Enterprise Networks |
| 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
A decade of delivery — trusted by 275+ clients across industries
