A next-generation Cisco Catalyst 4000 platform for intelligent switching, the Catalyst 4500 Series is a primary component of Cisco AVVID (Architecture for Voice, Video and Integrated Data), and extends control to enterprise wiring closets, branch offices, and Layer 3 distribution points.This bundle includes Catalyst 4506 chassis, 1000 AC-power supply, Supervisor Engine II plus, two 48-port 10/100 line cards WS-X4148-RJ.