... SM fiber optic connector 2.0 SC,LC,ST,FC,MU fiber optic connector APC,UPC,PC,SM,MM Simplex,duplex fiber connector kit SC/UPC SM fiber optic connector 2 ... Return Loss PC≥45dB,UPC≥55dB,APC≥65db PC≥35dB Ferrule Size 125.0+1/-0um,concentricity≤1.0125.0um,concentricity ... +1/-0um,concentricity≤1.0128.0um,concentricity≤3.0 The connector pre-assemblied kit or one piece are available.Boots in ...