Single-Unit is RoHS 2 and REACH compliant and all multimode and singlemode cables (except OM1) utilize bend-insensitive optical fibers. Each fiber is color coded for easy identification, flexible and easy to handle with lightweight aramid yarns to enhance strength. Single-Unit constructions are an ideal intra-building cable solution that will support applications including gigabit, 10 gigabit and 40 gigabit Ethernet. Made in USA. Proterial Cable America is proud to utilize Corning Optical Fiber as our standard optic fiber.