The Cisco Catalyst X4606-X2-E is a high-performance next-generation extension to the Cisco Catalyst 4500 Series. The new X4606-X2-E is composed of the Cisco Catalyst 4500 Series Supervisor Engine 6-E with CenterFlex technology, X4606-X2-E line card, is designed for secure, flexible, nonstop communications with superior backward and forward compatibility delivering exceptional investment protection for organizations of all sizes.