1.dual fiber cwdm mux/demux 2.16 channel cwdm module 3.fast delivery 4.lifetime warranty FeaturesOne rack unit (RU) ... and Demux in one unitLC Connectors (FC, SC also available)Dual fiber is used for both the network and the GBIC ... standard lightwave equipment including, Cisco, Nortel, Alcatel, Ciena, Fujitsu, etc. Dual Fiber 16-Channel CWDM Mux/Demux