Pair of SFP modules, S-35LC20D

MikroTik S-3553LC20D is a pair of SFP optical transceivers for fiber links. Their complementary transmit and receive wavelengths let the two modules work together across a fiber connection.

Each is a 1.25G single-mode SFP with an LC connector. One transmits at 1310 nm and receives at 1550 nm; the other transmits at 1550 nm and receives at 1310 nm. DDM support and a specified reach of up to 20 km suit fiber links between network devices.

The pair works with MikroTik equipment that has SFP ports and is also compatible with non-MikroTik SFP devices. Tested MikroTik equipment includes RB260GS and CCR1036-12G-4S.