Axiom DP04QSDD-HE0-AX 400GBASE-ZR+ QSFP-DD | Cisco Compatible, Enterprise — DP04QSDD-HE0-AX

Push 400 GbE farther with a QSFP-DD optic designed for long-reach Ethernet transport and higher optical output. This Axiom-compatible module is built for environments where link budget matters: dense core networks, metro aggregation, and data center interconnects that need dependable reach without moving to a different platform. The +1 dBm bright transmit profile gives network teams additional margin for challenging fiber paths and optical loss. That matters when you are extending service across longer spans, working through patching complexity, or planning for growth without redesigning the transport layer. QSFP-DD form factor support keeps the module aligned with modern high-density switching and routing platforms, while Cisco compatibility simplifies deployment in mixed-vendor environments. For infrastructure teams, the value is straightforward: preserve 400 GbE performance while meeting the optical demands of real-world plant conditions. This module is a strong fit when lower-cost short-reach optics are not enough and when the cost of a link failure is far higher than the cost of the right transceiver. Ideal For 400 GbE backbone uplinks between core switching platforms Metro aggregation links requiring extended optical reach Data center interconnects with higher fiber loss budgets Mixed-vendor Cisco environments needing compatible 400G optics Why This Product 1 Higher optical output than standard short-reach 400G optics 2 Built for long-reach Ethernet transport rather than intra-rack links 3 QSFP-DD density suits modern high-port-count platforms 4 Cisco compatibility reduces qualification friction