2x100G CWDM4 QSFP-DD 2km Transceiver: 2x100G-QDD-2.1

Our EDGEOPTIC 2x100G-QDD-2.1 is a multi-vendor compatible 2x100G CWDM4 QSFP-DD optical module designed for dual 100 Gigabit Ethernet applications operating over single-mode fiber infrastructure. The 2x100G-QDD-2.1 module operates across eight CWDM wavelengths (1271, 1291, 1311, and 1331nm repeated for each 100G channel), delivering aggregate data rates up to 206.25 Gbps using NRZ modulation and supporting flexible 2x100G Ethernet breakout configurations. Our 2x100G CWDM4 QSFP-DD transceiver utilizes DFB (Distributed Feedback) laser technology for transmission and PIN photodiode arrays for receiving, optimized for intermediate-reach campus and metro deployments.

The transceiver ensures a 5 dB guaranteed optical link budget, which determines the maximum transmission distance capabilities. Over standard single-mode fiber, the transceiver reliably reaches distances up to 2 kilometers, making it ideal for campus backbone connections and data center interconnect applications. However, distance is just an indicative parameter calculated for convenience of identification – ultimately we calculate reach taking into account minimal optical budget and average attenuation of optical cabling in industry standards. The module's dual CS duplex connector architecture enables efficient wavelength division multiplexing while maintaining familiar fiber management practices.

2x100G-QDD-2.1 compatible module is a hot-pluggable QSFP-DD with dual CS duplex connectors as the optical interface, providing flexibility for breakout configurations in modern network architectures. The electrical interface conforms to QSFP-DD MSA and SFF-8665 specifications, ensuring compatibility with standard QSFP-DD host systems supporting multiple vendor equipment platforms. Our 2x100G CWDM4 QSFP-DD transceiver can be encoded to be compatible and successfully operate in different 80+ brands of networking equipment. The module incorporates comprehensive DDM/DOM (Digital Diagnostic Monitoring) functionality providing real-time operational data including transmitted and received optical power levels per wavelength channel, module temperature, bias current, and supply voltage monitoring. This diagnostic data is accessible via CMIS V4.0 compliant interface, enabling proactive network management and advanced troubleshooting capabilities.

The module operates within a 0 to 70°C temperature range with 7W maximum power consumption, engineered for reliable operation in controlled data center environments. Standards compliance includes 100G CWDM4 MSA, 100G CLR4 Alliance specifications, and QSFP-DD MSA ensuring broad interoperability across platforms. The transceiver supports host FEC (Forward Error Correction) for enhanced signal integrity over extended reaches. Our QSFP-DD transceiver achieves multi-vendor compatibility through adherence to industry MSA standards, though equipment with vendor-specific module validation may require custom EEPROM programming for seamless integration. The module is CE/RoHS certified and compliant with international product safety standards.

Typical applications include data center interconnects, enterprise campus backbones, metropolitan area network deployments, and service provider edge aggregation. The 2x100G CWDM4 capability with 2km reach provides operational flexibility for network disaggregation while eliminating the need for external multiplexing equipment. The wavelength division approach maximizes fiber utilization efficiency in bandwidth-constrained environments. Because our focus is providing top quality service, we perform rigorous quality checks before delivery of our products. As a result, we conduct optical parameter measurements across all wavelengths, connector cleanliness tests, and QSFP-DD transceiver EEPROM memory data validation tests.