This 30 meter (~100 foot) fiber optic cable is terminated with an LC (Lucent Connector) on one end, and an ST (Straight Tip/Bayonet Connector) on the other end. It is a multi-mode fiber (50 micron core) designed to transmit data across shorter distances at LAN speeds. The cord is duplex (two fibers) which means it permits synchronous communication between devices. The cladding diameter is 125 microns. (Not for Home Theater).