Deliver 400G short-reach connectivity where density and speed matter most. This 400GBASE-SR4 OSFP transceiver is designed for multimode fiber deployments and supports up to 50 m reach, making it a strong fit for intra-row and rack-adjacent data center links. The OSFP form factor gives you a compact path to 400 GbE without sacrificing the port density modern switching platforms demand. Built around 850 nm optics and MPO-12 APC connectivity, this module aligns with parallel-fiber architectures used in high-throughput fabrics. That makes it well suited for teams standardizing on short-reach 400G links between switches, storage clusters, and compute aggregation points. In environments where every port matters, the right optic reduces migration friction and keeps the network aligned with the hardware it serves. For Mellanox-compatible platforms, this module offers a practical way to extend 400G performance into production without overbuying reach you do not need. It is a focused choice for data center operators who want high bandwidth, predictable short-distance behavior, and a form factor built for dense switching systems.