GIGALIGHT Unveils New Network Architecture for 400G QSFP-DD SR4 to 4×100G QSFP28 SR1/SFP112 SR1

SHENZHEN, China - April 23, 2025 - PRLog -- To address the demands for high-speed, high-density, and cost-efficient modern data centers, GIGALIGHT, a global leader in open optical networking, has officially launched its 400G QSFP-DD SR4 to 4×100G single-lane QSFP28/SFP112 SR1 economical short-reach data center interconnection solution. This product leverages innovative architectural design to significantly reduce deployment complexity and total cost of ownership (TCO), offering a flexible and efficient connectivity option for cloud computing, AI compute clusters, and hyperscale data centers.

High-Density Elastic Architecture

• Modular Design: The 400G QSFP-DD SR4 acts as an upstream port, branching into four independent 100G QSFP28/SFP112 SR1 downstream links via multimode/single-mode fiber, supporting 1:4 non-blocking transmission. This design increases single-port bandwidth utilization by 300% and conserves switch port resources.
• Cross-Platform Compatibility: Deeply aligned with mainstream data center Top of Rack (TOR) architectures, it seamlessly integrates with NVIDIA, Broadcom, and other leading switch chip platforms.

Single-Lane Technology Revolution

• Proprietary Innovation: Based on GIGALIGHT's single-lane 100G PAM4 modulation technology, this solution overcomes traditional parallel multi-fiber schemes, enabling stable 100-meter transmission over OM4 multimode fiber with 20% lower power consumption than comparable alternatives, meeting stringent energy efficiency requirements for SR short-range scenarios.
• Spectral Efficiency: By carrying 100G data on a single wavelength, it reduces fiber resource usage and enhances transmission density.

Cost-Effective Deployment

• Cost Optimization: Compared to traditional 400G full-optic module networks, this solution reduces high-speed optoelectronic conversion units by 75%, lowering equipment procurement costs. The 100G single-lane transmission also minimizes fiber usage, further reducing construction expenses.
• Rapid Deployment: Supports hot-swappable and plug-and-play functionality, requiring no changes to existing cabling infrastructure and cutting deployment timelines by 60%.

Full-Scenario Compatibility

• Flexible Configuration: Downstream ports can switch between 100G QSFP28 SR1 or 100G SFP112 SR1, ensuring compatibility with existing 100G equipment and emerging single-lane standards, safeguarding customer investments.

Typical Application Scenarios

• AI/GPU Cluster Interconnection: Enhances data transfer efficiency between compute nodes via low-latency, high-bandwidth connections, reducing power consumption.
• Cloud Data Center Spine-Leaf Architecture: Optimizes east-west traffic, alleviates core layer bandwidth strain, and improves network scalability.
• Storage Network Upgrades: Seamlessly integrates with high-speed storage protocols like NVMe over Fabric, accelerating data read/write speeds.

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