. Cisco ASA 5500 Series Adaptive Security Appliances are easy-to-deploy solutions that integrate world-class firewall Unified Communications (voice/video) security SSL and IPsec VPN intrusion prevention (IPS) and content security services in a flexible modular product family. Designed as a key component of the Cisco Self-Defending Network the Cisco ASA 5500 Series provides intelligent threat defense and secure communications services that stop attacks before they impact business continuity. Designed to protect networks of all sizes the Cisco ASA 5500 Series enables organizations to lower their overall deployment and operations costs while delivering comprehensive multilayer security.. .