What is the Ciena NTK852BA?
The Ciena NTK852BA is a SFP optical transceiver module, listed by the manufacturer as "RLA12x1 C-BAND 1Xsfp". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
The Ciena NTK852BA is a SFP optical transceiver module — originally specified as "RLA12x1 C-BAND 1Xsfp" — available refurbished or as surplus stock via Circular Telecom, supporting network operators sourcing decommissioned and reclaimed equipment.
Common Questions
The Ciena NTK852BA is a SFP optical transceiver module, listed by the manufacturer as "RLA12x1 C-BAND 1Xsfp". 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 NTK852BA, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue