Description
The AddOn Cisco® QSFP-40GE-LR4-AO is a high-performance, TAA-compliant QSFP+ transceiver designed to deliver 40GBase-LR4 Ethernet connectivity over single-mode fiber (SMF) with a reach of up to 10km. Operating on wavelengths between 1270nm and 1330nm, this module uses a standard duplex LC connector and supports Digital Optical Monitoring (DOM) for real-time performance diagnostics.
Engineered for enterprise, data center, and access network environments, this transceiver ensures seamless interoperability with Cisco® networking equipment and adheres to the SFF-8436 MSA standards. Each unit is hot-swappable, uniquely serialized, and undergoes rigorous data-traffic and application testing to guarantee full compatibility and reliable operation. With excellent ESD protection, low EMI emissions, and robust build quality, the QSFP-40GE-LR4-AO provides a cost-effective, high-quality solution for scaling 40G network infrastructure.
| Specification | Details |
|---|---|
| SKU | QSFP-40GE-LR4-AO |
| Compatible OEM | Cisco® |
| Form Factor | QSFP+ |
| Data Rate | 40 Gbps |
| Standard | 40GBase-LR4 |
| Wavelength | 1270nm – 1330nm |
| Connector Type | Duplex LC |
| Fiber Type | Single-Mode Fiber (SMF) |
| Maximum Reach | 10 km |
| Digital Optical Monitoring (DOM) | Supported |
| Operating Temperature | 0°C to 70°C |
| Power Supply Voltage | 3.13V – 3.47V |
| Power Consumption | ≤ 3.5 W |
| Hot Swappable | Yes |
| Compliance | SFF-8436, RoHS, TAA |
| Applications | Data Center, Enterprise, Access Networks |
| Warranty | Limited Lifetime Warranty |
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
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