A fiber patch cord—also known as a fiber optic patch cable—is a short, flexible cable, typically 1 to 10 meters long, used to connect two devices in a network. Think of it as a bridge that lets data flow between equipment, like linking a router to a switch, a server to a storage device, or even. When you build or upgrade a fiber network, the same four words pop up everywhere— fiber optic (bare fiber), pigtail, patch cord, optical cable. They're related, but they are not interchangeable. Mixing them up drives costs higher, increases loss, and slows your rollout. It connects one device to another, often within the same rack or across neighboring network equipment.