Amazon.com: 1.25G SFP Transceiver 1000Base-LX, 1310nm SMF, up to 10 km, for Cisco GLC-LH-SMD, Meraki MA-SFP-1GB-LX10, Ubiquiti UniFi, Fortinet, Mikrotik, D-Link, Supermicro, Netgear, TP-Link TL-SM311LS and More : Electronics
Amazon.com: Gigabit Single Mode SFP Transceiver for Cisco GLC-LH-SMD, 1000Base-LX/LH Mini GBIC, 1.25G SFP LC Fiber Module, 1310nm SMF, up to 20km, for Cisco, Meraki, Ubiquiti UF-SM-1G, TP-Link TL-SM311LS and More :
Amazon.com: 1000BASE-T SFP to RJ45 Copper Ethernet Module, Gigabit SFP-T Transceiver for Cisco SFP-GE-T, Meraki, Fortinet, Ubiquiti UniFi UF-RJ45-1G, D-Link, Supermicro, Netgear, TP-Link and More, Pack of 4 : Electronics
Office Depot
A Brief Introduction to Cisco Single-Mode SFP ModulesFiber Optic Components