What is the Ciena 170-5305-905?
The Ciena 170-5305-905 is a SFP optical transceiver module, listed by the manufacturer as "ETHNT I/O SFP PRNCD". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
The Ciena 170-5305-905 is a SFP optical transceiver module — originally specified as "ETHNT I/O SFP PRNCD" — available refurbished or as surplus stock via Circular Telecom, supporting network operators sourcing decommissioned and reclaimed equipment.
Common Questions
The Ciena 170-5305-905 is a SFP optical transceiver module, listed by the manufacturer as "ETHNT I/O SFP PRNCD". 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 170-5305-905, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue