Description
The AddOn Q28-100GP4-BXD3129-20-AO is a high-performance, MSA-compliant 100GBase-BX LR1 QSFP28 transceiver designed to deliver reliable 100Gbps bidirectional connectivity over single-mode fiber (SMF) up to 20km. Operating with transmit and receive wavelengths of 1311nm Tx and 1291nm Rx, it uses a bidirectional LC connector and supports PAM4 modulation for high-speed data transmission.
Engineered for data center and 100G Ethernet applications, this module provides seamless integration into existing networks and is built to meet or exceed OEM performance standards. It supports Digital Optical Monitoring (DOM) for real-time diagnostics and ensures long-term reliability with TAA compliance and RoHS-compliant, lead-free construction. Every unit is uniquely serialized, rigorously tested, and backed by AddOn’s limited lifetime warranty, making it an ideal choice for scalable, high-bandwidth networking environments.
| Specification | Details |
|---|---|
| SKU | Q28-100GP4-BXD3129-20-AO |
| Form Factor | QSFP28 |
| Data Rate | 100Gbps |
| Standards Compliance | QSFP28 MSA, SFF-8636 Rev 2.10a |
| Wavelength (Tx/Rx) | 1311nm Tx / 1291nm Rx |
| Reach | Up to 20km |
| Fiber Type | Single-Mode Fiber (SMF) |
| Connector | Bidirectional LC |
| Modulation Format | PAM4 |
| Interface | 4x25G Electrical, OIF CEI-28G-VSR |
| Digital Diagnostics (DOM) | Supported |
| Operating Temperature | 0°C to 70°C (Commercial) |
| Power Supply Voltage | 3.3V |
| Power Dissipation | ≤ 4.5W |
| Transmit OMA | 2.8 to 6.8 dBm |
| Receive Sensitivity (OMAouter) | MAX(-7.6 dBm, SECQ-9) |
| Applications | Data Centers, 100G Ethernet |
| Compliance | RoHS, TAA |
| 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
