Comprehensive Guide to High-Speed Optical Transceivers: 40G to 800G | QSFPDD Taiwan Manufacturer

Comprehensive Guide to High-Speed Optical Transceivers: 40G to 800G | QSFPDD Taiwan Manufacturer

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Introduction

As data centers scale to meet the demand for massive data processing and AI computing, choosing the right optical transceivers becomes critical. From legacy 40G to advanced 800G modules, each type serves a unique role in network evolution. This guide introduces high-speed optical transceivers—QSFP-40G, QSFP28 100G, QSFP56 200G, QSFP-DD 400G, and QSFP-DD 800G—focusing on their form factors, data rates, transmission distances, supported fiber types, and ideal use cases.

QSFP-40G

  • Form Factor: QSFP+

  • Speed: 4x10Gbps

  • Transmission Distance:

    • SR4 (OM3/OM4): Up to 150m (multi-mode)

    • LR4 (SMF): Up to 10km (single-mode)

  • Use Case: Legacy data centers, TOR connections, short-range DCI

QSFP28 100G

  • Form Factor: QSFP28

  • Speed: 4x25Gbps

  • Transmission Distance:

    • SR4: Up to 100m (MMF)

    • LR4: Up to 10km (SMF)

    • CWDM4: Up to 2km

  • Use Case: Enterprise data centers, cloud providers, spine-leaf architectures

QSFP56 200G

  • Form Factor: QSFP56

  • Speed: 4x50Gbps (PAM4)

  • Transmission Distance:

    • SR4: Up to 100m

    • FR4: Up to 2km

    • LR4: Up to 10km

  • Use Case: AI/ML workloads, HPC clusters, next-gen TOR links

QSFP-DD 400G

  • Form Factor: QSFP-DD (Double Density)

  • Speed: 8x50Gbps or 4x100Gbps (PAM4)

  • Transmission Distance:

    • SR8: Up to 100m

    • DR4: Up to 500m

    • FR4: Up to 2km

  • Use Case: Hyperscale data centers, large-scale AI networks, cloud DCI

QSFP-DD 800G

  • Form Factor: QSFP-DD

  • Speed: 8x100Gbps (PAM4)

  • Transmission Distance:

    • DR8: 500m

    • 2xFR4: 2km

    • 2xLR4: 10km

  • Fiber Type: Single-mode

  • Use Case:

    • High-performance AI training clusters (e.g., NVIDIA H100 systems)

    • Inter-rack and inter-building connectivity

    • Ultra-dense server farms

Why QSFPDD 800G?

QSFPDD 800G, a Taiwan-based TAA-compliant optical transceiver manufacturer, delivers cutting-edge solutions tailored for AI workloads, including RoCEv2, InfiniBand NDR, and large-scale model training. Their modules are engineered for 100% compatibility with industry giants like NVIDIA, Arista, Cisco, and Broadcom.

Conclusion

Whether you're upgrading your network or planning a scalable AI infrastructure, selecting the right optical transceivers is fundamental. From QSFP-40G for legacy support to QSFP-DD 800G for advanced AI-driven systems, there's a solution for every layer of your architecture. For TAA-compliant, high-quality optical modules, QSFPDD 800G stands as your trusted partner in connectivity.

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