The Cisco Catalyst WS-C6504-E Chassis is a 320-Gbps, small form factor, high-performance chassis. With the Cisco Catalyst 6500 Series Supervisor Engine 720, it can deliver up to 80 Gbps of switching capacity per slot. The 6504-E Catalyst switch offers the broadest range of interface modules with industry-leading performance and advanced feature integration. With this flexibility the Cisco Catalyst 6504-E is suitable for deployments ranging from small and medium-sized core networks to distribution and access networks and to the WAN edge. With high availability and resiliency the platform is well suited for metro provider-edge applications. The 4-slot Cisco Catalyst 6504-E Chassis delivers performance in a compact 5-rack-unit (5-RU) form factor. It can be configured two ways-with a single supervisor engine and up to three line cards, or with dual supervisor engines and up to two line cards. The Cisco Catalyst 6504-E also supports redundant AC or DC power supplies.