MikroTik SFP CWDM module 1.25G SM 40km 1570nm Dual LC-connector DDMMikroTik SFP CWDM module 1. 25G SM 40km 1570nm Dual LC connector DDM. These units are tested and compatible with The Coarse Wavelength Division Multiplexing technology which offers a solution which will increase capacity of existing fiber infrastructures.
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