The bundle tail fiber is composed of Corning tight sleeved optical fiber conforming to the full spectrum specification, wrapped with aramid fiber reinforcing elements, and then wrapped with PVC outer sheath with certain flame retardant performance. The bundle tail fiber is a crucial component in the fiber optic cable assembly, and any failure in this component can significantly impact the performance of the entire. Here, using a minimal myocyanophage, termed Pam3, isolated from Lake Chaohu, we demonstrate that the chaperone gp25 forms a stable complex with the tail fiber gp24 at a stoichiometry of 3:3. Their mechanical behavior is of primary concern here. It is widely used in the dense connection between. A tail fiber, also known as a fiber optic patch cord, consists of a connector on one end and a cut end of the fiber optic cable core on the other. It often appears in fiber optic terminal boxes.