Description
The AddOn Arista Networks® QDD4-400GB-SR4-BD-AR-AO is a high-performance QSFP-DD transceiver delivering 400GBase-BX SR4.2 throughput over multi-mode fiber (MMF) for distances up to 100 m. Operating across 850 nm to 902 nm wavelengths and utilizing PAM4 modulation, this transceiver ensures exceptional data transmission in high-density access and enterprise networks. It features an MPO-12 connector, supports 4×100 G breakout functionality, and complies with CMIS 4.0 for seamless interoperability. The hot-swappable module is fully compatible with Arista Networks® systems and includes Digital Optical Monitoring (DOM) for real-time diagnostics. Backed by AddOn’s stringent testing and TAA compliance, it is engineered for reliability, scalability, and optimized network performance.
| Specification | Details |
|---|---|
| Brand | AddOn |
| SKU | QDD4-400GB-SR4-BD-AR-AO |
| Form Factor | QSFP-DD |
| Data Rate | 400 Gbps |
| Ethernet Standard | 400GBase-BX SR4.2 |
| Wavelength Range | 850 nm – 902 nm |
| Reach / Distance | Up to 100 m |
| Fiber Type | MMF (Multi-Mode Fiber) |
| Connector | MPO-12 |
| Modulation | PAM4 |
| Breakout Support | 4×100 G |
| CMIS Compliance | CMIS V4.0 |
| DOM Support | Yes |
| Hot-Swappable | Yes |
| Operating Temperature | 0 °C to 70 °C |
| Power Consumption | 11 W (typical) |
| Compliance | TAA, RoHS |
| Applications | 400G Ethernet, Access Networks, Enterprise Data Centers |
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
