fiber optic adapter 1. SC/PC SM SX 2.Low insertion loss 3. ... 4.Easy to install SC/PC SM SX fiber optic Adapter Product descriptionFiber optic adapters are used in connecting fiber active ... ,Circular and Square link together-Color: Blue,Beige,Black,Green,Red, Orange ,Yellow,Aqua SpecificationParameterUnitLC,SC,FC,MU,ST,SC-ST ...