What is the Ciena NTK668CA?
The Ciena NTK668CA is a QSFP optical transceiver module, listed by the manufacturer as "1XQSFP28 + 2XQSFP+ PKT/OTN HYBRID I/F CARD, CIRCUIT PACK". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
