The MikroTik S+31DLC10D is an SFP+ optical transceiver designed for 10 Gigabit Ethernet over single-mode fiber. It operates at 1310 nm and supports transmission distances of up to 10 km using a duplex LC/UPC connector.

The transceiver supports digital diagnostic monitoring (DDM/DOM) to monitor optical power, voltage, temperature, and laser bias current. It is built for backbone connections, campus network deployments, industrial applications, and ISP infrastructure.

The transceiver is compatible with MikroTik RouterOS and MSA standards and can also be used in compatible SFP+ devices from other manufacturers. Supported data transfer rates range from 1.25 Gbps to 11.32 Gbps, supporting applications including 10G Ethernet, Gigabit Ethernet, 10G Fibre Channel, and STM-64.