This 2m OM5 Wideband Multimode Duplex Fiber Optic Patch Cable (50/125) - LC to ST has ceramic ferrules and a 50/125 micron core, this cable is suitable for extremely high speed data transmissions such that you would find in 100 Gigabit Ethernet (10 Gb/s) networks. This 100 Gig fiber is OM5 Laser-Optimized.