When copper distance limits stand in the way, this Black Box media converter provides a direct path to fiber. The LIC024A-R4 converts 10/100BASE-T to 10/100BASE-FX over single-mode fiber using 1310 nm optics and ST connectivity, with support for links up to 40 km. That makes it a strong fit for long-reach network extension where Fast Ethernet devices must connect across campuses, remote facilities, or separated buildings. Instead of forcing an endpoint refresh, it preserves the existing copper device and translates the connection into a fiber transport layer that can travel much farther with better isolation from electrical interference. For infrastructure teams, the value is in precision and reach. This is not a generic adapter; it is a purpose-built conversion point for environments where link distance, reliability, and compatibility all matter. In deployments where a failed run can disrupt operations, a dedicated media converter is often the cleaner and more economical answer than replacing working hardware.