Fiber Optic patch cord Using the most advanced adjustable core technology,End of scars, no dirt echo without loss Fiber Optic patch cord1.FeaturesCompliance ... ,Waterproof Pigtail CableMultiple option of Optic Cable CoreSimplex, Twin cores, 4 Cores, 6 Cores, 8 Cores, 12 Cores, 24 Cores, 48 ... ≥1000 TimesOperating Temperature Range -40°C ~ +80°C Fiber Optic patch cord