Multimode cable is a type of fiber optic cable designed to carry multiple light modes or paths simultaneously, enabling high-bandwidth data transmission over relatively short distances, commonly used in data centers and local area networks. Multi-mode links can be used for data rates up to 800 Gbit/s. 5 microns, compared to the ~9-micron core in single-mode fiber. The wider core accepts light from. For short to medium distance high speed data transport, multimode fiber optic cables are popular in data centers, enterprise networks and campus environments. There are five main types of multimode fiber, standardized by ISO/IEC 11801: OM1, OM2, OM3, OM4 and OM5.