MikroTik S-3553LC20D, a pair of SFP transceivers, the S-35LC20D is a 1.25G Single Mode optical SFP module with a LC connector, T1310nm R1550nm, which works for connections up to 20km and supports
MaxLink ML-S3155-20 - 1.25G SFP optical module WDM SM Tx 1310 Rx1550nm 20 km 1x LC connector DDM Modules are compatible with all MikroTik and Ubiquiti Network products and with others marked as "Cisco
MaxLink ML-S5531-20 - 1.25G SFP optical module WDM BiDi Single Mode Tx 1550 Rx1310nm 20 km 1x LC connector DDM Modules are compatible with all MikroTik and Ubiquiti Network products and with others ma
TP Link TL-SM321B - Single-Mode MiniGBIC 1000Base-BX SFP Module WDM Bi-Directional using a single strand of fiber LC Connector Max Distance up to 10 km over 9 125 m Single-mode fiber Wavelength TX: 13
TP Link TL-SM5110-LR - Single-mode SFP LC Transceiver Hot-Pluggable with maximum flexibility Supports Digital Diagnostic Monitoring (DDM) Compatible with 10G Small Form Pluggable Multi-Source Agreemen
