Carry a 100 Gbps optical Ethernet connection across multimode fiber between network devices that accept a QSFP28 optical module. The SR2 implementation uses an MPO optical connection and is specified for reaches up to 100 m. That combination addresses short high-bandwidth fiber runs where the physical plant is multimode fiber and the equipment interface is QSFP28. Aruba S1C93A provides a 100G SR2 multimode optic for switch-to-switch paths, aggregation connections, and other local equipment interconnects within the stated reach. MPO is the connector format at the transceiver end, while the 100 m limit defines the supported link distance. It is an optical module rather than a cable, so it occupies the QSFP28 interface on connected equipment. Selection turns on three fixed interface details: 100G operation, an SR2 MPO optical interface, and multimode fiber support. These characteristics separate this module from optics using different connector families, fiber types, or reach classes. Use it where both endpoints accept the required QSFP28 optic and the installed multimode path can be engineered within 100 m. Its focused 100G, SR2, MPO, and MMF specification suits a defined short-reach fiber segment rather than a copper connection.