The US Transceivers compatible QDD-400G-FR4 is a high-performance 400GBASE-FR4 QSFP-DD optical transceiver designed for 400 Gigabit Ethernet applications. Operating over single-mode fiber, this module uses four LWDM wavelengths in the O-band (1309.14 nm, 1317.3 nm, 1325.55 nm, and 1333.87 nm) to deliver aggregated 400G throughput at distances up to 2 km.
Built to the QSFP-DD form factor and compliant with IEEE 802.3cu and QSFP-DD MSA standards, this module supports 4x100G PAM4 electrical lanes and uses an LC Duplex connector interface for straightforward single-mode fiber deployments. Digital Diagnostic Monitoring (DDM) provides real-time visibility into key optical parameters including temperature, voltage, TX power, and RX power.
This US Transceivers compatible module is TAA compliant and RoHS certified, making it suitable for government and enterprise procurement. Typical applications include data center interconnect, cloud networking, enterprise core switching, and high-density 400G aggregation layers.
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