Model Name : GLC-SX-MM
Brand : Cisco
Key Features
It’s a Gigabit Ethernet SFP transceiver used for short-range connections over multimode fiber.
Up to 550 meters on OM3 fiber.
It uses LC duplex connectors.
Yes, it can be installed or removed without shutting down the device.
While designed for Cisco, it may work with some third-party devices that accept Cisco SFPs, but official support is only guaranteed on Cisco equipment.