Cisco ASA 5520
The ASA 5520 is intended for the Internet edge. It offers 450 Mbps of firewall throughput, 280,000 maximum firewall connections, 12,000 maximum firewall connections per second, 320,000 packets per second, 225 Mbps of maximum 3DES/AES VPN throughput, 750 maximum site-to-site and remote access VPN sessions, 750 maximum SSL VPN user sessions and 2 bundled SSL VPN user sessions.
It offers 1 GB of memory and 64 MB minimum system flash. It contains one 10/100 intetgrated port and four 10/100/1000, and enables as many as 150 virtual interfaces.