What is the Cisco GLC-SX-MM?
The Cisco GLC-SX-MM is a SFP optical transceiver module, listed by the manufacturer as "CISCO 1000BASE SX FIBRE SFP MODULE". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
The GLC-SX-MM is a SFP optical transceiver module manufactured by Cisco. Listed by the manufacturer as "CISCO 1000BASE SX FIBRE SFP MODULE", it is available through Circular Telecom's surplus and refurbished network equipment marketplace as a sustainable, tested alternative to buying new.
Common Questions
The Cisco GLC-SX-MM is a SFP optical transceiver module, listed by the manufacturer as "CISCO 1000BASE SX FIBRE SFP MODULE". 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-SX-MM, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue