Description
The AddOn Cisco® QDD4-400GB-SR4-BD-C-AO is a high-performance 400GBase-BX SR4.2 PAM4 QSFP-DD optical transceiver designed for ultra-high-bandwidth data center, enterprise, and access networking environments. It delivers up to 400Gbps throughput over multi-mode fiber (MMF) up to 100 meters using dual wavelengths (850nm and 902nm) and an MPO-12 connector. Engineered for seamless interoperability, this module is guaranteed to be 100% compatible with the equivalent Cisco® part and supports 4x100G breakout functionality for flexible deployment.
Featuring Digital Optical Monitoring (DOM) for real-time performance diagnostics, CMIS 4.0 compliance for next-generation management, and robust ESD protection, it ensures reliable operation in demanding network environments. The transceiver is fully hot-pluggable, TAA compliant, RoHS-certified, and backed by AddOn’s limited lifetime warranty — making it a dependable choice for scalable, high-density 400G Ethernet networks.
| Specification | Details |
|---|---|
| Brand | AddOn |
| SKU | QDD4-400GB-SR4-BD-C-AO |
| Compatibility | Cisco® |
| Form Factor | QSFP-DD |
| Data Rate | 400Gbps |
| Ethernet Standard | 400GBase-BX SR4.2 PAM4 |
| Fiber Type | Multi-Mode Fiber (MMF) |
| Wavelength Range | 850nm – 902nm |
| Maximum Reach | 100m |
| Connector | MPO-12 |
| Breakout Support | 4x100G |
| Modulation Format | PAM4 |
| CMIS Compliance | CMIS 4.0 |
| DOM Support | Yes |
| Hot Pluggable | Yes |
| Operating Temperature | 0°C to 70°C (Commercial) |
| Power Consumption | 11W (Typical) |
| Supply Voltage | 3.14V – 3.46V |
| TAA Compliant | Yes |
| RoHS Compliant | Yes |
| Warranty | Limited Lifetime |
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.
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