The Cisco Firewall Security System bundle allows customers to order a 10-Gbps system with a single product identifier. The 10-Gbps bundle includes a Cisco Catalyst 6509, fan tray, Supervisor Engine 720-3B, and two Firewall Services Modules (FWSMs). Each bundle can be configured with up to four FWSMs to deliver 20 Gbps of performance.This bundle consists of 6509-E Switch, Supervisor Engine 720-3BXL, two Firewall Services Modules and Catalyst 6509 Fan.