Zy XEL USG Extreme Series are Next Generation Firewalls (NGFW) designed to deliver high availability, anti-malware protection & consolidated policy enforcement for medium- & large-sized businesses & campuses. The Zy XEL USGs provide WAN & VPN load balancing & failover ensures nonstop business communications, while incorporating best-in-breed anti-virus, anti-spam, content filtering & application intelligence technology for effective application optimization & comprehensive network protection.