The Extreme Networks 10504 25G-LR-SFP10KM is a high-quality 25G SFP28 optical transceiver with a transmission distance of 10 kilometers. Made by the reputable brand Extreme Networks, this product ensures reliable and fast network connectivity. With its SFP network ports, this transceiver is ideal for use in enterprise networking setups, particularly in-server applications. Designed in the United States, this product provides a dependable solution for boosting network performance and efficiency.