What is the Cisco DS-CWDM-1490?
The Cisco DS-CWDM-1490 is a SFP optical transceiver module, listed by the manufacturer as "SFP CWDM 1490N". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
Manufactured by Cisco, the DS-CWDM-1490 (SFP CWDM 1490N) is a SFP optical transceiver module. Circular Telecom sources, tests, and resells surplus and refurbished Cisco equipment like this as part of a lower-carbon alternative to new procurement.
Common Questions
The Cisco DS-CWDM-1490 is a SFP optical transceiver module, listed by the manufacturer as "SFP CWDM 1490N". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
Circular Telecom sources and resells surplus and refurbished Cisco network equipment, including parts such as the DS-CWDM-1490, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue