Cisco SFP Modules for Gigabit Ethernet Applications Data Sheet

https://www.cisco.com/c/en/us/products/collateral/interfaces-modules/gigabit-ethernet-gbic-sfp-modules/datasheet-c78-366584.html

Hirschmann-Fiber-Gigabit-SFP-Modules

https://www.industrialnetworking.com/Manufacturers/Hirschmann-Fiber-Gigabit-SFP-Modules

RUGGEDCOM SFP Transceivers

https://support.industry.siemens.com/cs/document/109482309/ruggedcom-sfp-transceivers-catalog?dti=0&lc=en-CA

MOXA SFP Modules

https://www.moxa.com/en/products/accessories/sfp-modules