Keep high-speed fabrics moving with a 400GBASE-DR4 QSFP112 optic designed for NVIDIA-compatible deployments. This module is built for environments where every port must carry serious bandwidth without adding complexity to the rack. DR4 signaling supports short-reach 400 GbE links with the kind of consistency infrastructure teams expect when scaling leaf-spine architectures, GPU clusters, and high-density switching tiers. For procurement teams, the value is in fit and confidence. Axiom positions this module for enterprise networks that need a verified 400 GbE transceiver form factor rather than a generic alternative. QSFP112 packaging supports modern switch designs, while the DR4 optical architecture is suited to short-reach interconnects inside the data center. That makes it a strong choice when port density, latency sensitivity, and vendor alignment all matter. Use it where link speed is not optional: aggregation uplinks, top-of-rack switching, and compute fabrics that move large volumes of east-west traffic. This is the kind of optic selected when the cost of a weak link is far higher than the cost of the module itself.