The Set de Pigtails de Fibre Optique 12 fibres ST/UPC OS2 900µm 2m Code couleur (Part number: 101000500200005) is a Pigtails à Fibre Optique with a ST /UPC connector. Fiber Optic Pigtails are fiber cables that end with a connector at only one side while the other side is used for the splicing to cable. It is used to splice the fiber in the cable, to be connected to other equipment such as patch panels. It is normally used within the wall or rack mounted patch panel. The connector of this pigtail is a ST.