What is the Ciena NTK589FA?
The Ciena NTK589FA is a XFP optical transceiver module, listed by the manufacturer as "50GHz Multirate DWDM XFP". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
Ciena NTK589FA: a XFP optical transceiver module (50GHz Multirate DWDM XFP). Circular Telecom resells surplus and refurbished units of parts like this, helping operators extend network equipment lifecycles and reduce e-waste.
Common Questions
The Ciena NTK589FA is a XFP optical transceiver module, listed by the manufacturer as "50GHz Multirate DWDM XFP". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
Circular Telecom sources and resells surplus and refurbished Ciena network equipment, including parts such as the NTK589FA, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue