This Cisco DS-CWDM4G1590 compatible SFP transceiver provides 1/2/4Gbs Fibre Channel-CWDM throughput up to 40km over FALSE at a wavelength of 1590nm using a LC connector. It is guaranteed to be 100% compatible with the equivalent Cisco transceiver. This easy to install, hot swappable transceiver has been programmed, uniquely serialized and data-traffic and application tested to ensure that it will initialize and perform identically. Digital optical monitoring (DOM) support is also present to allow access to real-time operating parameters. All of our transceivers are Trade Agreements Act (TAA) compliant.