The US Transceivers compatible QDD-400G-ER4 is a 400GBASE-ER4 QSFP-DD optical transceiver designed for high-speed, long-reach single-mode fiber deployments. Operating across four wavelength lanes in the 1305 to 1311 nm range using LAN-WDM technology, this module delivers an aggregate data rate of 400 Gbps over distances of up to 40 km, making it well suited for extended-reach metro and data center interconnect applications.
Built in the compact QSFP-DD form factor, this transceiver uses an LC Duplex connector interface and supports Digital Diagnostic Monitoring (DDM) for real-time visibility into key optical parameters such as temperature, voltage, TX power, and RX power. The module is fully compliant with RoHS, CE, REACH, and TAA requirements, ensuring suitability for regulated procurement environments.
US Transceivers compatible QDD-400G-ER4 modules are manufactured to meet or exceed OEM performance specifications, providing a cost-effective and reliable solution for enterprise core networking, service provider infrastructure, and long-haul interconnect deployments.
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