The Cisco Firewall Security System bundles allow customers to order a 10-Gbps system with a single product identifier. This 10-Gbps bundle includes a Cisco Catalyst 6509 Switch, fan tray, Supervisor Engine 720-3B, and two Firewall Services Modules (FWSMs). This bundle can be configured with up to four FWSMs to deliver 20Gbps of performance.The FWSM for Cisco Catalyst 6500 Series Switches is a high-performance, integrated stateful inspection firewall with application and protocol inspection engines, providing 5.5Gbps of throughput; 100,000 connections per second; and one million concurrent connections.