What is the Cisco CFP2-100G-ER4?
The Cisco CFP2-100G-ER4 is a CFP2 optical transceiver, listed by the manufacturer as "CFP2 ER4 SMF, 1294-1310nm, 40km, DDM". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
Cisco CFP2-100G-ER4: a CFP2 optical transceiver (CFP2 ER4 SMF, 1294-1310nm, 40km, DDM). Circular Telecom resells surplus and refurbished units of parts like this, helping operators extend network equipment lifecycles and reduce e-waste.
Common Questions
The Cisco CFP2-100G-ER4 is a CFP2 optical transceiver, listed by the manufacturer as "CFP2 ER4 SMF, 1294-1310nm, 40km, DDM". 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 CFP2-100G-ER4, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue