1000BASE-SX SFP Multimode VS. 1000BASE-LX SFP Single-modeFiber Optic Components
Amazon.com: Gigabit Single Mode SFP Module for Unifi UF-SM-1G, 1000Base-LX/LH SFP Transceiver, 1G SFP to LC Fiber Mini-GBIC, for Ubiquiti, Mikrotik, Intel, Fortinet, Netgear, D-Link, Supermicro (SMF,1310nm,20km) : Electronics
StarTech.com USB C to Fiber Optic Converter - Open SFP - 1000BASE-SX/LX - Windows / Mac / Linux - USB Ethernet Adapter - USB Network Adapter (US1GC30SFP) - network adapter - USB-C -