100GBase-LR4 QSFP28 Transceiver — Cisco Compatible Long-Reach Connectivity
The AddOn QSFP-100G-LR4-S-20-AO is a 100GBase-LR4 QSFP28 transceiver engineered for enterprise data centers and high-speed network deployments requiring extended reach over single-mode fiber. This Cisco-compatible transceiver delivers 100 Gbps throughput up to 20 kilometers, making it ideal for campus interconnects, metropolitan area networks, and long-distance fiber links. TAA compliant and featuring Digital Optical Monitoring (DOM), this module ensures reliable, monitored performance while maintaining 100% compatibility with Cisco® QSFP-100G-LR4-S-20 transceivers at a fraction of the cost.
Key Features
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100GBase-LR4 Performance: 100 Gbps throughput over single-mode fiber (SMF)
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Extended 20km Reach: Long-distance connectivity for campus and metro deployments
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Cisco Compatible: 100% compatible with Cisco® QSFP-100G-LR4-S-20 modules
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LC Connector: Standard duplex LC interface for reliable connections
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Digital Optical Monitoring (DOM): Real-time monitoring of optical parameters and transceiver health
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TAA Compliant: Trade Agreements Act certified for government and enterprise procurement
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1295-1309nm Wavelength: CWDM wavelength range for dense wavelength division multiplexing
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Hot-Pluggable Design: Tool-free installation and removal without system downtime
Technical Specifications
| Specification |
Details |
| Manufacturer |
ADD-ON |
| Part Number |
QSFP-100G-LR4-S-20-AO |
| Protocol |
100GBase-LR4 |
| Form Factor |
QSFP28 |
| Data Rate |
100 Gbps |
| Reach |
20 km over single-mode fiber |
| Connector Type |
LC (Duplex) |
| Wavelength |
1295 nm to 1309 nm (CWDM) |
| Fiber Type |
Single-Mode Fiber (SMF) |
| Monitoring |
Digital Optical Monitoring (DOM) |
| Compliance |
TAA Compliant, IEEE 802.3bm |
| Compatibility |
Cisco® QSFP-100G-LR4-S-20 |
Frequently Asked Questions
What is a QSFP28 transceiver and how does it differ from other modules?
A QSFP28 transceiver is a hot-pluggable optical module that supports up to 100 Gbps data rates. Unlike older SFP+ modules (10 Gbps), QSFP28 transceivers deliver 10x higher throughput in the same compact form factor, making them essential for modern 100G network infrastructure and data center interconnects.
Is this 100GBase-LR4 transceiver truly Cisco compatible?
Yes. The AddOn QSFP-100G-LR4-S-20-AO is guaranteed 100% compatible with Cisco® QSFP-100G-LR4-S-20 transceivers. It meets all optical and electrical specifications, supports DOM monitoring, and works seamlessly in Cisco switches and routers without requiring firmware updates or configuration changes.
What does TAA compliance mean for this transceiver?
TAA (Trade Agreements Act) compliance certifies that this QSFP28 transceiver meets U.S. government procurement standards. It qualifies for federal contracts, GSA schedules, and enterprise purchasing agreements that require TAA-compliant components, ensuring eligibility for sensitive government and institutional deployments.
How far can this 100GBase-LR4 transceiver transmit over single-mode fiber?
This module supports transmission distances up to 20 kilometers over single-mode fiber (SMF), making it ideal for campus interconnects, metropolitan area networks, and long-reach data center links. The extended reach is achieved through the 1295-1309nm CWDM wavelength range and optimized optical design.
