... Description:DescriptionMTRJ-DX-MM Optical fiber patch cord Φ2.0 Appearance /No crack, No scar, good ... conformabilityFerrule Polished/No scar, No spotInsertion lossdBSM≤0.2Return lossdBUPC≥30Curvature eccentricity um<50Fiber core undercutnm ... 200times, 10times/minutes, ±80°Insertion loss change < 0.1,Return loss change< 5, No flab, No ... standard MTRJ-DX-MM 2.0 Optical fiber patch cord