This Ugreen Gigabit SFP bidirectional optical transceiver is designed for network switches, offering 1.25Gbps data transmission over single-mode fiber. Featuring an LC connector, it supports bidirectional communication using 1310nm and 1550nm wavelengths, extending network connections up to 20 kilometers. It ensures broad compatibility with major network equipment from brands such as Huawei, H3C, and Ruijie.