FS 100G DWDM PAM4 is the most cost-effective point-to-point transmission solution within 80km, and is widely used in local data center interconnection, metro network transmission, and distributed access scenarios. It offers higher speed, longer distance, lower latency, higher density, and more flexible configuration, meeting customers' changing needs and requirements. FS will continue to develop and iterate its products to ensure it remains an optimal solution for local customers.