As global data consumption continues to grow at an unprecedented pace, network infrastructures are under constant pressure to deliver higher bandwidth and more efficient performance. The 400G QSFP-DD LR4 10km optical module is one of the most advanced solutions addressing this demand, providing stable long-distance transmission and ensuring networks are ready for the future of high-speed communication.
This optical module is built for 400 Gigabit Ethernet applications, designed to transmit data up to 10 kilometers over single-mode fiber (SMF). By leveraging four wavelengths in the 1310nm range, it can deliver a total of 400Gbps, while maintaining power efficiency and minimizing latency.
Another notable feature is its QSFP-DD (Quad Small Form-factor Pluggable Double Density) design, which doubles the number of electrical lanes compared to traditional QSFP modules. This compact yet powerful form factor makes it highly adaptable for modern data centers that demand more capacity within limited rack space.
The 400G QSFP-DD LR4 is not just a step forward—it’s a critical enabler for next-generation networks. It finds wide use in:
Cloud data centers requiring rapid scalability for AI workloads, storage, and real-time analytics.
Telecommunication backbones where stable, long-distance high-bandwidth connections are essential.
Enterprise networks upgrading their core infrastructure to support digital transformation and heavy traffic.
With its ability to support 10km transmission without signal degradation, the module ensures reliable performance across a broad range of network topologies.
As 5G, cloud computing, and AI technologies expand globally, network demands are shifting from gigabit speeds to multi-terabit requirements. The 400G QSFP-DD LR4 helps bridge this gap by enabling seamless migration to ultra-high-speed networking while keeping operational costs and power consumption under control.
It is also engineered for interoperability, making it easier for businesses to integrate the module into existing ecosystems without excessive upgrades or compatibility issues.
The 400G QSFP-DD LR4 10km optical module is more than a component—it is a cornerstone for building tomorrow’s digital infrastructure. By combining high capacity, efficient power usage, and long-distance transmission, it provides a future-ready solution for data centers, telecoms, and enterprises worldwide.
Q1: What is the main function of the 400G QSFP-DD LR4 10km module?
A1: It provides high-speed 400Gbps data transmission over single-mode fiber up to 10km, mainly for data centers, telecom networks, and cloud platforms.
Q2: What fiber type does the 400G QSFP-DD LR4 use?
A2: It operates on single-mode fiber (SMF), using four wavelengths in the 1310nm range.
Q3: Which industries benefit most from 400G QSFP-DD LR4 modules?
A3: Cloud service providers, telecom operators, AI computing centers, and large enterprises upgrading their core networks.
Q4: Is the QSFP-DD LR4 backward compatible?
A4: Yes, the QSFP-DD form factor supports backward compatibility with QSFP modules, making integration easier in existing infrastructure.
Q5: Why should businesses adopt 400G optical modules now?
A5: With the rapid growth of cloud computing, AI, and 5G, businesses need higher bandwidth. The 400G QSFP-DD LR4 helps ensure scalable, efficient, and future-ready networks.
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