The USG FLEX H Series provides secure, fast protection with pioneering high performance for Virtual Private Networks (VPN) and Unified Threat Management (UTM), providing a multi-layered approach to protect firewall, network infrastructure and connected users using Zyxel's high-performance hardware and state-of-the-art By leveraging the architecture of AI Security Cloud.

Extremely high performance
Ultra-high performance supported by our next-generation multi-core hardware and Fastpath technology to create ultra-high efficiency. The USG FLEX H series is capable of up to 3x performance boost, optimizing processor utilization and enabling Zyxel to deliver superior performance to meet the demands of demanding and high-speed networks.

Port flexibility, Multi-G and PoE+
With 2.5 Gbps and 10 Gbps port speed options, the USG FLEX H also features software-defined ports, providing real flexibility in configuring and customizing each USG FLEX H as needed (WAN or LAN).

USG FLEX H offers up to 2 x 30W integrated PoE+ ports*1, which helps to reduce complexity by simplifying installations and reducing installation costs by enabling devices such as 5G routers, the latest WiFi or devices such as VoIP phones directly from the USG FLEX H itself.

Trouble-free network management with nebula
Using nebula*2, Zyxel's centralized cloud management platform, you can centrally configure and deploy networking and security tools (coming soon).

You can manage multiple devices and combine information from them to create a more effective ring of protection around your network.

AI-powered cloud cyber security
Network security is constantly evolving to meet the demands of an ever-changing work environment. Blocks malicious threats and limits inappropriate user behavior. The USG FLEX H Series leverages AI-based cloud intelligence to operate multiple layers of protection such as sandboxing, anti-malware, DNS/IP/URL filtering, IPS and application patrol across the premises.

The new fast and efficient uOS
The USG FLEX H series introduces our latest high-performance uOS (operating system). It's designed to increase security, minimize system response time, apply configuration changes immediately, and optimize configuration and security policy management with a new, intuitive UX (User Experience).