1[Ceramic Material] The optical fiber ferrule is made of high quality ceramic, so that any configuration of the fiber tail and jumper can make the loss of the optical signal very small, ensuring extremely low insertion loss and reflection loss. 2[Repetitive Insertion Removal] Low insertion loss, large return loss, good interchangeability, excellent repeated insertion and removal performance, easy to use. 3[Plug in Locking] SC type optical fiber jumpers and pigtails, using plug in locking, movable connection, suitable for SC type adapters. 4[Professional Design] 3 Meter single mode single core fiber optic patch cord, SC/SCSM, designed for fast Ethernet and fiber channel, very suitable for the needs of fiber optic professionals. 5[Scope of Application] Fiber optic cable can be used for optical fiber wiring, communication room, link transmission equipment, optical fiber communication, communication base station, and transceiver equipment.