Keep short-reach 100 GbE links stable in high-density switching environments with SR4 QSFP28 optics. This transceiver is designed for multimode fiber runs in data center fabrics where predictable throughput, compact port usage, and clean interoperability matter more than excess reach. At 100 GbE, SR4 is the right fit for top-of-rack, leaf-spine, and aggregation layers that need high bandwidth over shorter distances. The QSFP28 form factor preserves port density while supporting the throughput required for storage, virtualization, and east-west traffic patterns. With 850 nm multimode operation and a 100 m reach, it aligns with structured cabling already deployed in many enterprise racks and rows. For teams standardizing on short-reach optics, this module helps keep the network simple: fewer conversion points, less complexity in the physical layer, and a clear match between link distance and optic type. It is a practical choice when you need 100 GbE performance without paying for long-reach capability you will not use.