S-3553LC20D|Pair of SFP modules, S-35LC20D (1.25G SM 20km T1310nm/R1550nm) + S-53LC20D (1.25G SM 20km T1550nm/R1310nm) Units are tested and compatible with RB260GS, RB2011LS, RB2011LS-IN, RB2011UAS-IN, RB2011UASRM, RB2011UAS-2HnD, RB2011UAS-2HnD-IN CCR1036- 12G-
S-3553LC20D,