What is the Cisco GLC-T?
The Cisco GLC-T is a SFP optical transceiver module, listed by the manufacturer as "1000BASE-T SFP". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
Cisco GLC-T: a SFP optical transceiver module (1000BASE-T 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 Cisco GLC-T is a SFP optical transceiver module, listed by the manufacturer as "1000BASE-T SFP". 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 GLC-T, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue