An advanced 400G Carrier Ethernet demarcation and aggregation device designed to deliver SLA‑based, high‑performance networking services for massive data transfer across data centers, clouds, enterprise sites, and edge locations. Built for AI‑driven network demands, the ETX‑2i‑400G provides ultra‑high capacity, predictable low latency, and enhanced security, making it the ideal solution for efficient, scalable, and resilient Data Center Interconnect (DCI) and next‑generation enterprise connectivity.