Optical Splitter 1*2 SM 1310/1550 Fused Splitter 1.tube type,3.0*54mm steel tube,1m length 2.with SC connector, Optical SplitterFeaturesApplications² Low Insertion Loss² Uniform Power ... Ratio (Attenuation or Stage)01=1/99 or 1dB or 1 Stage, 02=2/98 or 2dB or 2 Stage, 03=3/97 or ... steel tubeK120x80x18 plastic caseB53x60 steel tubeXU19'' x=1,2,3,4 U Rack MountD90x20x9.5 plastic caseXGX=1,2,3,4 U LGX box