... .Low insertion loss 3.Good repeatability 4.Easy to install SC/PC SM SX fiber optic Adapter Product descriptionFiber optic adapters ... ,Black,Green,Red, Orange ,Yellow,Aqua SpecificationParameterUnitLC,SC,FC,MU,ST,SC-ST,FC-ST,SC-FC,FC-LC,FC-MUMTRJE2000SMMMSMMMSMPCUPCAPCPCPCUPCPCPCAPCReturn lossd B≤0.3 ≤0.2≤0 ...