Cisco Catalyst 3550 24-Port Switch with SMI (Refurbished)The Cisco Catalyst 3550 Series Intelligent Ethernet Switches is a line of enterprise class, stackable, multilayer switches that provide high availability, security and quality of service (QoS) to enhance the operation of the network. With a range of Fast Ethernet and Gigabit Ethernet configurations, the Catalyst 3550 Series can serve as both a powerful access layer switch for medium enterprise wiring closets and as a backbone switch for small