Extreme Networks 5520-VIM Interface ModuleUnlock scalable, high speed fiber connectivity with the Extreme Networks 5520 VIM Interface Module. Designed to extend the capabilities of 5520 series switches, this four port 25 Gigabit Ethernet optical fiber module delivers blistering data throughput, robust reliability, and seamless integration for data centers, enterprise networks, and service providers. Whether youre refreshing a core backbone, expanding edge connectivity, or enabling multi