Extreme Networks Interface ModuleExtreme Networks Interface Module The Extreme Networks Interface Module is the cornerstone for high performance, scalable stacking in Extreme Networks deployments. Designed as a SummitStack module, it delivers a robust 40 Gigabit stacking solution using two SummitStack ports, enabling fast, low latency interconnects across multiple switches. This module is purpose built for seamless integration with the Extreme Networks Summit X440, Summit X460, and