ZYXEL USGFLEX50H Cyber Security Firewall – 2 Gbps, 25 Users, Nebula Cloud

Compact, silent security for small offices

The Zyxel USGFLEX50H Cyber Security Firewall is a compact, fanless unit designed to blend into busy workspaces while delivering robust network protection. With a 2 Gbps firewall throughput and a 1,000 Mbps IPS capacity, it supports up to 25 users and up to 100,000 concurrent sessions, making it suitable for growing teams seeking reliable security without adding noise or bulk.

What comes in the Gold Security Pack

• Anti-malware and sandboxing to detect threats at the edge
• IPS 1,000 Mbps for deep packet inspection and threat prevention
• Web filtering and DNS/IP/URL reputation to guide safe browsing
• App patrol and AI SecuPilot for smart policy recommendations
• Full UTM active from day one for small offices

Offline-capable setup and updates

Configure via the Nebula portal wizard and update firmware offline via FTP on the local network. The web interface remains accessible after updates, so management stays uninterrupted even when the internet is temporarily unavailable.

Flexible, scalable networking

Five 1G RJ-45 ports can be assigned as WAN or LAN. WAN load balancing and active-backup failover help sustain connectivity, while eight VLAN interfaces and Link Aggregation improve resilience as your network grows.

• 5 x 1G ports configurable as WAN or LAN
• WAN load balancing
• Active-backup failover
• Eight VLAN interfaces
• Link Aggregation for higher throughput

Nebula Cloud management and VPN

Centralized security policy control with real-time monitoring and SD-VPN orchestration. Supports IKEv2/IPSec, SSL, and Tailscale VPN, with up to 20 IPSec tunnels, 15 SSL VPN users, and up to 12 managed APs.

• Centralized policy control and real-time monitoring
• SD-VPN orchestration for flexible remote access
• IKEv2/IPSec, SSL, and Tailscale VPN options
• Up to 20 IPSec tunnels and 15 SSL VPN users
• Supports up to 12 managed access points

Quiet operation, compliant design, and expandability

The fanless design minimizes noise in busy spaces, while TAA compliance supports deployments in regulated environments. Built to grow with your network, it blends security with practical usability and scalable features.