What is the Ciena NTK538DZ?
The Ciena NTK538DZ is a QSFP optical transceiver module, listed by the manufacturer as "WLAI MOTR 4X QSFP28 CIRCUIT PACK". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
Looking for the Ciena NTK538DZ? This QSFP optical transceiver module, described by the manufacturer as "WLAI MOTR 4X QSFP28 CIRCUIT PACK", is stocked and resold through Circular Telecom's refurbished and surplus telecom equipment network.
Common Questions
The Ciena NTK538DZ is a QSFP optical transceiver module, listed by the manufacturer as "WLAI MOTR 4X QSFP28 CIRCUIT PACK". 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 NTK538DZ, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue