10GBASE-ZR SFP+ to LC Optical Gigabit Ethernet transceiver module, SingleMode SMF , 1550nm, LC duplex connector, DDM, up to 300m. Easy to Use - Easy installation, plug and play, fully hot-pluggable. Widely used in fiber switches, routers, NIC, server or other equipment with 10Gb SFP+ ports. DDM allows you to monitor the critical information concerning the status of the transmitted and received signals of the transceivers in real-time to find out potential problems.