10 Gigabit SFP+ Optical Tranceiver, Dual LC - 10GBASE-LR 1310nm (LC) [10km / 6.2 miles with SMF] with DOM ( DMI ) - Digital Optical Monitoring. A fiber to Ethernet solution using interchangeable, compact media connectors that enable a single network device to connect to a wide variety of fiber and copper cable types and distances.