Ciena速 NTK587BUE5 Compatible 10GBase-DWDM XFP Transceiver (SMF, 1545.32nm, 80km, LC, DOM). A 100% Ciena速 compatible XFP transceiver that operates at ITU Channel 40, ITU Wavenlength 1545.32nm, and ITU Frequency 194000GHz over single-mode fiber, with a maximum reach of 80km connected via a LC connector. This Ciena速 XFP transceiver is 100% compliant with its designed networking application, and is factory programed with Ciena速 specific configuration data required for seamless networking integration. This XFP transceiver will initialize and perform identically to Ciena's transceiver and is built to meet or exceed Ciena's specifications, and comply with MSA (Multi-Source Agreement) standards. The actual part shipped may have a different part number, but will be functionally identical and 100% compatible. Trade Agreements Act (TAA) versions of this part are available.