Redundant, high-capacity storage subsystems, ideal for applications that outgrow internal server disk capacity. RAID5 arrays with hot-swap hard drives, redundant cooling and power systems and capacities up to 5.6 TB per array. Multiple arrays can be grouped together for effective total storage exceeding 84 TB. Direct-attached SCSI interface provides high-speed disk I/O. Stateful inspection firewall, can be placed in-line with a single server or in front of multiple servers. Virtual Private Network (VPN) with up to 256-bit AES data encryption. Hardware* and software VPN clients available. Intrusion detection and prevention of hostile traffic such as Denial of Service (DoS). * Requires device on client-side network. Lightweight software based, peer-to-peer Virtual Private Network (VPN). 128-bit Blowfish encryption and tunneling on the IP level. Allows existing services such as file sharing as well as any TCP or UDP protocol to be encrypted. Operating system interoperability allows multiple peer-to-peer tunnels between Windows and Linux servers.   Ideal as an easy and inexpensive solution for secure communications over the Internet (e.q. remote file servers, extranets etc.)