Pigtail is a type of cable that is made of a connector at one end and loose wires on the other. The pigtail connector side is used to link the equipment, while the side of the pigtail that is made of loose wires is melted in order to connect the fiber cable. Pigtails can be single-mode or multi-mode which can be accompanied by terminations like SC, FC, ST, LC, MU, MT-RJ, etc.