These are short lengths of optical fibre manufactured with one end with a factory installed connector and the other end bare fibre, intended to be spliced into fibre optic cables. They present a safe and low-loss linkage among network cables and devices and they come in both Single Mode (long distance communication) and Multi-Mode (short distance).
Fiber Optic Pigtail 0.9mm Single mode OS2 with LC or SC Connector Fiber Optic Pigtail 0.9mm Multi mode OM3/OM4 with LC or SC Connector