SFP (miniGBIC) optical modules, single strand Bi-Directional (WDM), Gigabit 1.25G 20Km with SC connector
Amazon.com: TP-Link Gigabit SFP module | 1000Base-LX Single-mode Fiber Mini GBIC Module | Plug and Play | LC/UPC interface | Up to 10km distance (TL-SM311LS) : Electronics
5 Pair 1gb Sc 5km/20km Sfp Module Gigabit Optical Single Mode Single Fiber Transceiver Compatible With Cisco Ethernet Switch - Fiber Optic Equipment - AliExpress
Buy Wholesale China Fiber Optical Module Sfp Sc 10g Ddm Single Mode Simplex Sfp Modul & Sfp Module at USD 5.5 | Global Sources
Amazon.com: Single Mode LC Gigabit Fiber Media Converter - Includes LC SFP 20 km (12.42 Miles) LC – to UTP Cat5e Cat6 10/100/1000 RJ-45 – Auto Sensing Gigabit or Fast Ethernet Speed -
Amazon.com: SFP Copper RJ45 Transceiver Gigabit Module 10/100/1000Base-T with Gigabit Ethernet Single Mode Dual SC Fiber, Mini 1x 10/100/1000Base-T RJ45 to 1x 1000Base-LX SFP Slot Ethernet Media Converter : Electronics
1 meter LC/SC Singlemode Duplex Fiber Optic Cable, 9/125
SFP Transceiver Module Gigabit Single Mode Single Fiber Optical Ethernet Compatible with Cisco Switch 1g 3km 1310/1550nm Sm Sc Connector - China Glc-Bx-3D and Glc-Bx-3u
Single Mode SFP vs Multimode SFP: What's the Difference?