What is the Ciena NTK540BC?
The Ciena NTK540BC is a QSFP optical transceiver module, listed by the manufacturer as "WL5E MOTR ENHANCED 6 PORT 1X QSFP-DD/5X QSFP28 CIRCUIT PACK". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
