... 1.FC Connector 2.0.9 / 2.0 / 3.0mm Boot 3.Blue Black Green Yellow color 4.RoHS, SGS Compliance 5.Rich ... m, Concentricity: ≤1.0μm 125μm, Concentricity: ≤3μm 125.3+1/-0μm, Concentricity: ≤1.0μm127μm, Concentricity ... : ≤3μm125.5+1/-0μm, Concentricity: ≤1.0μm ... 128μm, Concentricity: ≤3μm126.0+1/-0μm, Concentricity: ≤1.0μm FC Blue Boot SM Optical Fiber Connector