With the explosive growth in data traffic and increasing demand for higher bandwidth, modern data centers and telecom networks require innovative solutions. The 400GBase QSFP-DD LR4 optical transceiver module delivers high-speed, long-distance, and reliable data transmission, making it a key choice for 2025 networking infrastructure upgrades.
QSFP-DD (Quad Small Form Factor Pluggable Double Density) is an advanced optical transceiver standard that extends traditional QSFP capabilities. Supporting up to 400Gbps, it doubles the port density of conventional QSFP modules, optimizing space utilization while meeting the needs of high-bandwidth applications.
High data throughput up to 400Gbps
Space-efficient design for dense network deployments
Backward compatible with standard QSFP ports
The term 400GBase LR4 refers to 400 Gigabit Ethernet Long-Reach 4, using four wavelengths to transmit data over single-mode fiber (SMF). This allows high-speed transmission over distances of up to 10km, leveraging Dense Wavelength Division Multiplexing (DWDM) technology to maintain signal integrity across long distances.
| Feature | Specification |
|---|---|
| Data Rate | 400Gbps |
| Form Factor | QSFP-DD |
| Transmission Distance | Up to 10km |
| Wavelengths | 4 (each 100Gbps) |
| Fiber Type | Single-Mode Fiber (SMF) |
The 400GBase QSFP-DD LR4 is ideal for data centers aiming for higher throughput and operational efficiency. It accelerates data transfer between servers and storage systems, reducing network bottlenecks.
In telecom networks, the need for high-capacity, long-distance links is constant. LR4 modules provide reliable, high-speed connectivity suitable for dense metro and regional networks.
Scalability: Upgrade existing infrastructure easily without major overhauls.
Compatibility: Works with existing QSFP ports for flexible deployment.
Cost-Efficiency: Reduces cost per bit compared to older transceiver modules.
QSFP-DD LR4 modules are designed for plug-and-play installation. They are hot-swappable, enabling replacement or upgrades without disrupting network operations—a crucial feature for modern IT environments where uptime is critical.
Thermal Management: High power modules require efficient cooling.
Upgrading Costs: Initial investment may be higher than lower-speed modules.
Infrastructure Compatibility: Ensure existing networks can support 400G speeds.
The 400GBase QSFP-DD LR4 10km module combines speed, efficiency, and distance, making it an essential component for modern high-speed networks. Ideal for data centers and telecom infrastructure, these modules enable scalable, reliable, and cost-efficient networking solutions for 2025 and beyond.
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