Product Overview: 

The 400G QSFP-DD FR4 remains the pivot speed for modern enterprise networks. This module uses CWDM4 technology (4 wavelengths on 1310nm band) to deliver 400Gbps over existing duplex single-mode fiber infrastructure. It offers the perfect balance of cost-per-bit and high-speed performance for data center interconnects (DCI) and campus backbones.

Key Technical Specifications:

• Form Factor: QSFP-DD (Double Density)

• Reach: 2km over Duplex SMF (LC Connector)

• Modulation: 4x100G PAM4

• Compatibility: Backward compatible with QSFP28 (100G) and QSFP56 (200G) ports.

• Diagnostics: Real-time Digital Optical Monitoring (DOM/DDM).

Application Benefits:

• Seamless Upgrades: Protect your investment by using this in existing QSFP-DD slots while maintaining compatibility with legacy 100G links.

• Reduced Cabling Costs: Unlike SR8 modules, the FR4 requires only 2 fibers (duplex), significantly lowering structured cabling complexity.