A 1.25G SFP (Small Form-factor Pluggable) module, SM (Single Mode), Single Fiber, 80KM, 1550/1310, LC Connector, is designed for high-performance data transmission over single-mode fiber optic networks. It supports data rates up to 1.25 Gbps and is optimized for long-distance communication, capable of reaching distances of up to 80 kilometers. The module uses a single fiber strand for both transmit (1550 nm) and receive (1310 nm) operations, reducing fiber deployment costs. The LC connector ensures reliable connectivity and minimal signal loss, making it ideal for telecommunications, ISP networks, and other applications requiring high-speed, long-range data transmission.