Move Gigabit Ethernet farther without redesigning the network edge. This copper-to-fiber media converter bridges 10/100/1000 Mbps RJ45 connections to single-mode LC fiber, giving infrastructure teams a straightforward way to extend links across buildings, floors, and outdoor pathways. With support for up to 40 km, it is built for long runs where copper reaches its limit. The feature set is aimed at dependable transport, not just basic conversion. Support for 1000BASE-T and 1000BASE-LX aligns it with common enterprise fiber architectures, while full/half duplex, auto-negotiation, auto MDI/MDI-X, and 9K jumbo frames help it fit into established network environments. A DIP switch for Link Fault Passthrough adds operational control when you need clearer fault behavior across the link. The all-metal chassis and compact footprint make it easier to place in wiring closets, edge cabinets, and distributed network enclosures. LED indicators simplify status checks, and the included 5V DC power adapter supports consistent operation. For teams that need a long-distance fiber handoff with minimal complexity, this converter delivers the right mix of reach, compatibility, and physical durability.