Extend USB connectivity across fiber and keep critical endpoints within reach when copper runs out of distance or immunity. The StarTech US100A20FXSC converts USB to 100BASE-FX fiber, giving you a practical way to bridge network segments in electrically noisy spaces, across buildings, or between isolated equipment locations. This converter is designed for deployments where a direct USB path is not enough. Fiber helps preserve signal integrity over longer runs and reduces exposure to electromagnetic interference, making it a stronger fit than short-range copper extenders in plant floors, utility rooms, and distributed IT environments. The SC fiber interface supports clean integration into existing multimode fiber infrastructure. For teams that need a dependable point-to-point extension without overbuilding the solution, this model offers a focused, purpose-built approach. It is a better fit than generic adapters when the requirement is stable USB-to-fiber conversion for LAN extension and remote connectivity.