What is the Cisco DWDM-SFP-4931?
The Cisco DWDM-SFP-4931 is a SFP optical transceiver module, listed by the manufacturer as "1000BASE-DWDM SFP ZX Transceiver". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
Looking for the Cisco DWDM-SFP-4931? This SFP optical transceiver module, described by the manufacturer as "1000BASE-DWDM SFP ZX Transceiver", is stocked and resold through Circular Telecom's refurbished and surplus telecom equipment network.
Common Questions
The Cisco DWDM-SFP-4931 is a SFP optical transceiver module, listed by the manufacturer as "1000BASE-DWDM SFP ZX Transceiver". 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 DWDM-SFP-4931, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue