The Cisco^® PIX^® 64-Bit/66-MHz 4-Port Fast Ethernet Interface Card delivers a high-performance PCI interface, increased port density per PCI slot, and easy integration with the market-leading Cisco PIX Security Appliance Series (Figure 1). For small to medium-sized business, large enterprise, and service provider networks, the Cisco PIX Security Appliance Series offers extensible solutions that provide robust, enterprise-class, integrated network security services with solid investment protection. This 4-port Fast Ethernet card takes full advantage of this extensibility, enabling enterprises to segment their networks and provide a wide-range of high-performance security services including stateful inspection firewalling, advanced application and protocol inspection, VPN, inline intrusion protection, and rich multimedia and voice security services in an easy-to-deploy solution.