USG Unified Security Firewall, 2×WAN, from ZyXEL 4×LAN/DMZ, comprehensive UTM protection.

The Unified Security Gateway delivers comprehensive protection for small and medium‑sized businesses, featuring a powerful 1600 Mbps SPI firewall, 400 Mbps VPN throughput, and 450 Mbps UTM performance. It includes 4 LAN/DMZ ports, 2 WAN ports, and a configurable optional port, with full support for load balancing and failover to ensure uninterrupted connectivity. With up to 150,000 concurrent sessions, advanced security services (Anti‑Virus, Content Filtering, Email Security, IPS/IDP, Application Patrol), and built‑in AP controller functionality supporting up to 40 APs, this gateway provides reliable, scalable, and secure network management. Includes a 1‑year security bundle.