The S-31DLC20D is a 1.25G SFP transceiver equipped with a 1310nm Dual LC connector, supporting Single Mode fiber connections over distances of up to 20 kilometers. It includes DDM (Digital Diagnostics Monitoring), offering real-time monitoring for added performance insights. This unit is tested and compatible with various MikroTik devices, including the RB260GS, RB2011LS, RB2011LS-IN, RB2011UAS-IN, RB2011UAS-RM, RB2011UAS-2HnD, RB2011UAS-2HnD-IN, and CCR1036-12G-4S. Additionally, the S-31DLC20D is compatible with non-MikroTik SFP devices, ensuring versatile connectivity across a wide range of network setups.