The Cisco® Dense Wavelength-Division Multiplexing (DWDM) Small Form Factor Pluggable (SFP) module allow enterprise companies and service providers to provide scalable and easy-to-deploy Gigabit Ethernet or Fibre Channel services in their networks. Main features of the Cisco DWDM SFP include: -Support for International Telecommunication Union (ITU) 100-GHz wavelength grid, -Match for wavelength plan of Cisco 100-GHz ONS product family, -Fixed-wavelength SFP, with 40 different SFP models, -Hot-swappable input/output device that plugs into Gigabit Ethernet SFP ports or slots of a Cisco switch or router, linking the port with the network. Performance Supported protocols: Gigabit Ethernet, Fibre Channel 1 Gbps and 2 Gbps. Optical link budget of 28 db.