Immunity to electronic interference and its greater speeds over longer distances, fiber optic cabling has become the conduit of choice for high speed network communications. OM1 'Orange' multi-mode cable with a 62.5 um core and 125 um cladding diameter. Pair of color-coded ST connectors on each end. Cable jacket is OFNR (Optical Fiber, Non-conductive, Riser) rated by UL.