Product Introduction Fiber Optic Adapter, also named as Fiber Optic Coupuer, is device that can ... +LAN,FTTH, Video Transmission,Optical Fiber Sensor,Testing equipment,CATV. Sleeve Material: Ceramic/bronze Specification: Type SC ,LC, FC ,ST , MU ... , Duplex,Hybrid Endface PC & APC Mode SM = Singlemode , MM = Multimode Sleeve Zirconia Ceramin , Phosphor Bronze Insertion Loss ≤ 0.2dB Exchangeability ≤ 0 ...