Communication ModuleChina 2 Fibers MUX DEMUX CWDM, 8 Channels / Frequencies / Wavelengths Filter WDM Multiplexer (19" 1U Chassis, LC/UPC Connector), Find details about China CWDM, CWDM Mux Demux from 2 Fibers MUX DEMUX CWDM, 8 Channels / Frequencies / Wavelengths Filter WDM Multiplexer (19" 1U Chassis, LC/UPC Connector)