When copper reaches its limit, this SFP module gives you a cleaner path across longer fiber spans. The TRENDnet TE100-MGBS20 is designed for 100Base-LX operation with LC connectivity and support for distances up to 20 km, making it suitable for inter-building links, remote closets, and other Fast Ethernet fiber deployments. Its compact SFP form factor helps preserve switch density while keeping optical expansion straightforward. For teams maintaining legacy Fast Ethernet infrastructure, this module provides a focused way to extend reach without replacing the surrounding network design. It is a sensible choice where link distance matters more than higher throughput, and where compatibility with existing fiber plant is the priority. Use it to keep older access or edge systems connected across longer runs with a transceiver that fits standard optical workflows. It delivers the reach and connector standard expected in disciplined enterprise environments, without adding unnecessary complexity.