The Cisco® PIX® 64-bit/66-MHz four-port Fast Ethernet interface card delivers high performance PCI interface, increased port density per PCI slot, and ease of integrating with the world-leading Cisco PIX Security Appliance Series. For small-to-medium business to large enterprise and service provider networks, the Cisco PIX Security Appliance Series offers extensible solutions providing robust, enterprise-class, and integrated network security services with a solid investment protection. The Fast Ethernet card takes full advantage of this extensibility by providing high-performance interfaces for stateful inspection firewalling, protocol and application inspection, virtual private networking (VPN), in-line intrusion protection, and rich multimedia and voice security services in an easy-to-deploy solution.