1.dual fiber cwdm mux/demux 2.16 channel cwdm module 3.fast delivery 4.lifetime warranty FeaturesOne ... and GR1221 qualifiedEpoxy-free in optical pathISO 9001 manufacturing facilityLifetime Product WarrantySpecificationsChannel center wavelengths 1311, 1331, 1351, 1371, 1391, ... .0 dBApplicationsAny equipment using ITU-T G.694.2 standard CWDM transceiversGBIC, SFP, XFP, Xenpak, SONET, Routers, Switches ...