ENET QDD-400G-LR4-S-ENC 400GBASE-LR4 QSFP-DD Transceiver
The ENET QDD-400G-LR4-S-ENC is a high-performance 400GBASE-LR4 QSFP-DD transceiver engineered for enterprise data centers and core network infrastructure requiring ultra-high-bandwidth, long-reach optical connectivity. This 400G transceiver module delivers 400 Gb/s data rates over single-mode fiber links extending up to 10 kilometers, making it ideal for campus interconnects, metropolitan area networks, and future-proof infrastructure upgrades. Built as a fully compatible alternative to OEM 400G-LR4 modules, it integrates seamlessly into Cisco ecosystems while maintaining exceptional reliability and performance standards for mission-critical applications.
Key Features
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400 Gb/s throughput — Ultra-high-speed data transmission for demanding network environments
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400GBASE-LR4 standard — Industry-standard protocol for long-reach optical connectivity
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QSFP-DD form factor — Compact, hot-pluggable design for flexible deployment
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Single-mode fiber support — Extended reach up to 10 km with duplex LC connectors
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Cisco-compatible module — Drop-in replacement for OEM 400G-LR4 transceiver applications
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Wavelength range 1271–1331 nm — Optimized for long-wavelength optical performance
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Future-proof infrastructure — Supports next-generation data center and core network upgrades
Technical Specifications
| Specification |
Details |
| Manufacturer |
ENET SOLUTIONS |
| Part Number |
QDD-400G-LR4-S-ENC |
| Transceiver Type |
QSFP-DD (Quad Small Form Factor Pluggable Double Density) |
| Protocol Standard |
400GBASE-LR4 |
| Data Rate |
400 Gb/s |
| Fiber Type |
Single-mode fiber (SMF) |
| Maximum Link Distance |
10 km |
| Connector Type |
Duplex LC |
| Wavelength Range |
1271 nm – 1331 nm |
| Operating Temperature |
0°C to 70°C |
| Form Factor |
Hot-pluggable QSFP-DD module |
| Compatibility |
Cisco 400GBASE-LR4 systems and OEM equivalents |
Frequently Asked Questions
What is a 400GBASE-LR4 QSFP-DD transceiver used for?
A 400GBASE-LR4 QSFP-DD transceiver enables ultra-high-speed optical connectivity for data center interconnects, core network backbones, and metropolitan area networks. The ENET QDD-400G-LR4-S-ENC module supports 400 Gb/s transmission over single-mode fiber up to 10 km, making it essential for organizations upgrading to next-generation network infrastructure.
Is the ENET QDD-400G-LR4-S-ENC compatible with Cisco equipment?
Yes, the ENET QDD-400G-LR4-S-ENC is fully compatible with Cisco 400GBASE-LR4 systems and serves as a reliable OEM-equivalent replacement module. It integrates seamlessly into existing Cisco network environments without requiring firmware modifications or reconfiguration.
What is the maximum distance supported by this 400G transceiver module?
The ENET QDD-400G-LR4-S-ENC supports single-mode fiber links up to 10 kilometers, making it suitable for long-reach campus interconnects and metropolitan network deployments. The duplex LC connectors and optimized wavelength range (1271–1331 nm) ensure reliable performance over extended distances.
Why choose the ENET 400G-LR4 module over OEM alternatives?
The ENET QDD-400G-LR4-S-ENC offers cost-effective, future-proof 400G connectivity with full OEM compatibility and proven reliability. As a QSFP-DD transceiver designed for demanding data center and core network applications, it delivers enterprise-grade performance while reducing infrastructure upgrade costs.
