... core technology,End of scars, no dirt echo without loss Fiber Optic patch cord1.FeaturesCompliance with the Standard of IEC and YD ... , APC PolishingSingle mode, Multi-mode VersionsRibbon Pigtail Cable,Bunchy Pigtail Cable,Waterproof Pigtail CableMultiple option of Optic Cable CoreSimplex, Twin cores, 4 Cores, 6 ... of Usage ≥1000 TimesOperating Temperature Range -40°C ~ +80°C Fiber Optic patch cord