The US Transceivers compatible QFX-QSFP-40G-ESR4 is a high-performance 40GBASE-ESR4 QSFP+ transceiver module designed for short-reach multimode fiber applications. Operating over an MPO/MTP connector interface, this module supports a data rate of 40 Gbps across four parallel 10G lanes using 850nm VCSEL transmitters, with a maximum reach of 300 meters over OM3 multimode fiber or 400 meters over OM4 multimode fiber.
Built to meet IEEE 802.3 and QSFP+ MSA standards, this TAA compliant module delivers reliable, low-latency connectivity in demanding network environments. It supports Digital Diagnostic Monitoring (DDM/DOM), allowing real-time monitoring of key optical and electrical parameters such as temperature, voltage, TX power, and RX power.
This US Transceivers compatible module is ideal for data center aggregation, high-density server interconnects, enterprise core switching, and campus backbone deployments where high-bandwidth, short-reach multimode fiber connectivity is required.
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