1.25G SFP BiDi fiber optical transceiver compatible with different brands' switches is a highly reliable component in optical communication. Operating with a transmit wavelength of 1310nm and a receive wavelength of 1550nm over single-mode fiber, the single mode sfp offers 3km reach. This makes it suitable for connecting network points within a relatively close proximity, such as different floors of a building or adjacent facilities. The LC/UPC connectors are designed to ensure a stable connection. Network technicians can easily upgrade or expand their networks, guaranteeing a continuous 1.25G data flow across the 3km span, and thus meeting the networking needs of various environments.