The Cisco Catalyst 5505 Switching System enables users to construct high-performance, cost-effective, and manageable switched networks with a modular, flexible chassis system. The five-slot modular chassis features a dual, fault- tolerant power supply option and a full complement of hot-swappable interface modules. Network designers can implement the Catalyst 5505 as a cost-effective, switched Ethernet alternative to shared hubs in the wiring closet and high-density switching for data center applications.