What is the Ciena NTK596PH?
The Ciena NTK596PH is a SFP optical transceiver module, listed by the manufacturer as "SFP TRANSCEIVER, CWDM NRZ OC- 3/12/48/OTU1, 28DB, 1531NM, 3.3V, 0/+70C, LC". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
