What is the Cisco C1131-8PWB?
The Cisco C1131-8PWB is a SFP optical transceiver module, listed by the manufacturer as "ISR 1100 8P DUAL GE SFP ROUTER". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
The Cisco C1131-8PWB is a SFP optical transceiver module — originally specified as "ISR 1100 8P DUAL GE SFP ROUTER" — available refurbished or as surplus stock via Circular Telecom, supporting network operators sourcing decommissioned and reclaimed equipment.
Common Questions
The Cisco C1131-8PWB is a SFP optical transceiver module, listed by the manufacturer as "ISR 1100 8P DUAL GE SFP ROUTER". 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 C1131-8PWB, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue