The 10GBASE-DWDM SFP+ Transceiver operates at a wavelength of 1546.12nm designed for 10 Gigabit Ethernet and SONET applications.
It supports a 100GHz ITU grid and is ideal for long-distance communication over fiber optic networks.
Cisco DWDM-SFP10G-46.12= 10GBASE-DWDM SFP+ Transceiver 1546.12nm