Move Gigabit Ethernet off copper and onto multimode fiber without redesigning the access layer. This 1000BASE-T to 1000BASE-SX media converter converts an RJ45 copper link to 1000BASE-SX over MMF, giving you a practical path for extending connectivity between closets, floors, and adjacent buildings. With LC fiber connectivity, 850 nm optics, and support for distances up to 550 m, it fits the kind of short-to-medium fiber runs that often justify a media conversion layer instead of a full switch refresh. That matters when you need to preserve existing copper endpoints while reaching farther, reducing electromagnetic interference concerns, or landing fiber into legacy equipment that still depends on RJ45. The TAA designation also makes it easier to align with public sector and regulated procurement requirements. For teams that value predictable interoperability and a straightforward migration path, this converter delivers exactly what the network needs: copper in, fiber out, and a clean handoff to multimode infrastructure.