The highest quality of the Extralink SFP 1.25G 1310NM fiber optic module. The Extralink SFP 1.25G 1310NM fiber optic module is a single-mode SFP insert designed for data transmission at a speed of up to 1.25 Gbps. Thanks to this device, you can enjoy reliable data transmission over long distances - up to 20 km. This single-mode SFP module guarantees high performance and transmission stability, making it an ideal choice for professional networking applications. Compatibility and Ecology Extralink SFP 1.25G 1310NM complies with the SONET OC-24-LR-1 standard and the RoHS directive, which means that it meets the highest technological and ecological standards. With an LC output connector, the module is easy to install and compatible with a wide range of devices. Offering full compliance with widely used standards, Extralink SFP ensures seamless integration with existing network systems. Advanced Diagnostic Features The SFP 1.25G insert is equipped with digital diagnostic monitoring (DOM) that enables both external and internal calibration. With this feature, users can monitor key operating parameters such as temperature, power supply voltage, optical output power, and more. This tool ensures higher reliability and maintainability of optical transmission systems. Versatility of Applications The Extralink SFP 1.25G 1310NM 20KM SM DOM 2-Pack module is widely used in various data transmission systems. It can be used in Gigabit Ethernet, fiber optic channels, switch-to-switch interfaces, switched backplane applications, router/server interfaces and other optical transmission systems. Its versatility makes it an excellent choice for all types of network infrastructure. Perfect Replacement for MikroTik Extralink SFP 1.25G 1310NM 20KM SM DOM 2-Pack can be used as a replacement for SFP MikroTik S-31DLC20D. Thanks to its high-quality workmanship and full compatibility with popular systems, this SFP module provides a reliable alternative while ensuring cost savings.