UNC Group SpeedaLite 50 (OM2) fiber optic cables are fully tested and gauranteed for the lifetime. The 50 refers to the actual diameter size of the core itself - measured in microns. OM2 cable is recommended for premise applications like backbone, horizontal and intrabuilding connections. OM2 has three times the bandwidth than that of OM1 making it a more popular choice among those who require a network that can handle a large amount of data at the SpeedaLite . OM2 Fiber optic cables can carry a 10 Gigabit ethernet signal up to 82 meters.