Cisco WS-X4590-EX is a Catalyst 4500 Series Fabric Module that serves as the backplane interconnect between the chassis supervisor engine and installed line cards. Designed for use in Cisco Catalyst 4500E family switches, it enables scalable, high-speed fabric connectivity required for multi-card configurations in data centers and enterprise networks. Installations are supported in compatible 4500-series chassis with the appropriate supervisor engine, providing the essential fabric communications path that underpins reliable, aggregated switching within the chassis.
