The compatible Ubiquiti UF-SM-1G-LH SFP is a Gigabit Ethernet optical transceiver module, designed for long-distance single fiber connections. It operates at 1310nm, supports the 1000BASE-LX/LH standard, and offers a data rate of 1.25 Gbps over SMF with a range of up to 20 km. The module uses an LC duplex connector and is hot-pluggable for easy installation and replacement. It also supports Digital Diagnostics Monitoring (DDM) for real-time monitoring of the module's status and performance. This transceiver is intended for Ubiquiti networking equipment and other compatible SFP sockets requiring a stable and high-performance fiber connection.