Maintain high-speed east-west traffic with a 100GBASE-SR4 QSFP28 transceiver built for short-reach multimode fiber environments. This AddOn Networks module is compatible with Fortinet FN-TRAN-QSFP28-SR deployments and carries TAA compliance for procurement environments that require trade agreement alignment. Designed for data center fabrics, leaf-spine switching, and high-density aggregation, it supports 100 GbE connectivity where low-latency optical links are needed between adjacent racks or within the same row. The SR4 optical profile is a practical fit for organizations standardizing on multimode infrastructure and looking to avoid the cost of longer-reach optics when the link distance does not require it. For teams that care about compatibility, sourcing, and lifecycle control, this transceiver offers a straightforward path to expand capacity without changing the underlying fiber plant. It is a focused, deployment-ready option for environments that need dependable 100G performance and a clean fit into enterprise procurement standards.