What is the Fujitsu FC9570B40B?
The Fujitsu FC9570B40B is a SFP optical transceiver module, listed by the manufacturer as "CWDM MULTI-RATE SFP". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
Fujitsu FC9570B40B: a SFP optical transceiver module (CWDM MULTI-RATE SFP). Circular Telecom resells surplus and refurbished units of parts like this, helping operators extend network equipment lifecycles and reduce e-waste.
Common Questions
The Fujitsu FC9570B40B is a SFP optical transceiver module, listed by the manufacturer as "CWDM MULTI-RATE SFP". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
Circular Telecom sources and resells surplus and refurbished Fujitsu network equipment, including parts such as the FC9570B40B, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue