An ST Fiber Optic Patch Cord is a type of fiber optic cable that has an ST (Straight Tip) connector at both ends. The ST connector is one of the older, but still commonly used types of fiber optic connectors. ST patch cords are commonly used in telecom networks, data centers, fiber-to-the-home (FTTH), fiber optic splicing, and network junctions where secure and reliable fiber optic connections are needed.