The dX3 module provides two 400G ports, delivering the highest‑density high‑speed Ethernet capability per module, chassis, or rack unit. Each QSFP‑DD port supports multiple PAM4 and NRZ configurations, including 400G, 200G, 100G, 50G, 40G, 25G, and 10G, with accessory support for 4x100G QSFP28 breakouts. Ports support both PAM4 and NRZ encoding with required licensing. The module enables Ethernet FEC, Auto Negotiation, and Link Training across all speeds, including 8x50G. It supports L2/3 routing, switching, and data center testing while offering large‑capacity, high‑density performance in a single‑slot QSFP‑DD platform.

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