Sustain 400GbE connectivity where port density and short-reach performance matter most. NVIDIA MMA4Z00-NS400-T is an OSFP transceiver designed for multimode fiber deployments that need high bandwidth without adding complexity to the rack. With MPO12 APC connectivity, 850 nm optics, and support for links up to 50 m, it fits cleanly into modern switch fabrics built for fast server aggregation and low-latency east-west traffic. This module is a practical choice for environments that have already standardized on multimode infrastructure and need to scale bandwidth without moving to longer-reach optics. The OSFP form factor supports compact high-density switching platforms, while the 400GbE data rate gives architects room to consolidate uplinks and reduce oversubscription. For teams planning around predictable short-reach runs between switches, top-of-rack systems, and adjacent rows, this transceiver delivers the reach and interface profile required for disciplined network design. Choose this model when you need a verified 400GbE optic from NVIDIA for short-distance multimode links and want to preserve port density in demanding production networks.