MikroTik S-35 53LC20D

The MikroTik S-35/53LC20D is a bidirectional SFP transceiver kit for single-fiber long-distance links. It includes two modules: the S-35LC20D transmits at 1310 nm and receives at 1550 nm, while the S-53LC20D transmits at 1550 nm and receives at 1310 nm. Each module supports up to 20 km reach over single-mode fiber.