Patch Panels: The compact design of LC connectors makes them ideal for patch panels that require numerous connections in a small area. Your choice directly impacts rack space efficiency, installation ease, and system scalability. In addition to serving the same general function, the four connectors differ in size, locking mechanism, and best applications. The following guide systematically describes. ■ How to Choose the Right Fiber Patch Cord Connector: This is a comparision between LC, SC, ST, and FC connector types.