1. Introduction
This manual provides instructions for the Zyxel USG FLEX200 H Series security gateway. The USG FLEX200 H Series is designed to offer robust network security and flexible connectivity options, featuring user-definable ports including 2 x 2.5G and 6 x 1G Ethernet ports, along with USB connectivity.

Image: Zyxel USG FLEX200 H Series security gateway, showing its compact design and front panel.
2. Package Contents
Verify that your package contains the following items:
- Zyxel USG FLEX200 H Series Device (Model: USGFLEX200H-EU0101F)
- Power Adapter
- Ethernet Cable
- Quick Start Guide
- Safety Warnings and Regulatory Notices
3. Hardware Overview
3.1 Front Panel
The front panel of the USG FLEX200 H Series device features various ports and LED indicators for status monitoring and connectivity.

Image: Close-up view of the Zyxel USG FLEX200 H Series front panel, highlighting the USB port, LED indicators, eight Ethernet ports (P1-P8), and the Console port.
- USB Port: For connecting external storage or other USB devices.
- LED Indicators: Power, System, and User status.
- Ethernet Ports (P1-P8): User-definable ports, including 2 x 2.5G and 6 x 1G ports. These can be configured as WAN or LAN.
- Console Port: For direct command-line interface access.
- Reset Button: To restore factory default settings.
3.2 Key Features
The USG FLEX200 H Series incorporates advanced features for enhanced network performance and security:

Image: Visual representation of key features including high firewall/VPN/UTM performance, 802.3at PoE+ support for cabling cost savings, and Multi-G user-definable WAN/LAN Ethernet ports.
- Multi-G User-Definable Ports: Flexible WAN/LAN Ethernet ports up to 10 Gbps (specific models).
- PoE+ Support: 802.3at PoE+ offers 30W per port, potentially reducing cabling costs (on specific models like USGFLEX200HP).
- High Performance: Enhanced firewall, VPN, and UTM throughput.
4. Initial Setup
Follow these steps for the initial setup of your Zyxel USG FLEX200 H Series device:
- Connect Power: Connect the power adapter to the device and plug it into a power outlet.
- Network Connection: Connect your internet service provider's modem to one of the WAN-configured Ethernet ports (e.g., P1).
- Local Network Connection: Connect a computer or network switch to one of the LAN-configured Ethernet ports (e.g., P2).
- Power On: Press the power button (if available) or ensure the device powers on automatically. Wait for the system LED to indicate readiness.
- Access Web Interface: Open a web browser on the connected computer and navigate to the default IP address (refer to the Quick Start Guide for the specific IP and login credentials).
- Initial Configuration: Follow the on-screen wizard to complete the basic network settings, including WAN/LAN configuration, password changes, and time zone settings.
5. Operation and Configuration
The Zyxel USG FLEX200 H Series offers a comprehensive web-based management interface for configuring its various features. Key operational aspects include:
5.1 Security Features
The device provides robust security functionalities, which can be enhanced with licensing options.

Image: A table illustrating the difference in protected status for various security features (e.g., Network Address Translation, Stateful Packet Inspection, VPN, Anti-Malware) between unlicensed (hardware only) and licensed (bundle) configurations.
- Firewall: Stateful Packet Inspection (SPI) and Distributed Denial of Service (DDoS) protection.
- VPN: Securely encrypts data transmission across networks.
- Anti-Malware/Anti-Virus: Scans for and blocks malicious software.
- Web Filtering/Content Filtering: Controls access to specific website categories.
- Intrusion Prevention/Detection (IPS/IDP): Detects and prevents network attacks.
- Zero Trust Security: Simplified security management with SecuExtender, available across multiple OS platforms.

Image: A graphic depicting the concept of zero trust security, emphasizing its ease of implementation with SecuExtender across various operating systems.
5.2 User Interface
The device features a new powerful uOS designed for an accelerated system response time and a user-friendly experience.

Image: The Zyxel USG FLEX device positioned in front of people using various mobile devices, symbolizing the new powerful uOS that accelerates system response time with a user-friendly design.
6. Maintenance
Regular maintenance ensures optimal performance and longevity of your device:
- Firmware Updates: Periodically check the Zyxel support website for the latest firmware versions. Updating firmware can provide new features, security enhancements, and bug fixes.
- Configuration Backup: Regularly back up your device's configuration settings. This allows for quick restoration in case of unexpected issues or device replacement.
- Physical Cleaning: Keep the device free from dust and debris. Use a soft, dry cloth for cleaning. Ensure ventilation openings are not obstructed.
- Environmental Conditions: Operate the device within recommended temperature and humidity ranges to prevent overheating and damage.
7. Troubleshooting
If you encounter issues with your Zyxel USG FLEX200 H Series, consider the following common troubleshooting steps:
- No Power: Ensure the power adapter is securely connected to both the device and a working power outlet. Check the power LED indicator.
- No Internet Access: Verify that your modem is working correctly and connected to the correct WAN port. Check WAN port status LEDs. Ensure your network configuration (IP address, DNS) is correct.
- Cannot Access Web Interface: Confirm your computer is connected to a LAN port and has an IP address within the device's subnet. Try clearing your browser's cache or using a different browser. Verify the device's IP address.
- Slow Performance: Check network utilization. Ensure firmware is up to date. Review security logs for potential threats or excessive traffic.
- Factory Reset: If all else fails, you may perform a factory reset using the reset button. Warning: This will erase all configurations. Back up your settings before proceeding.
8. Technical Specifications
Below are the technical specifications for the Zyxel USG FLEX200 H Series, including comparisons to previous generations and other models in the series.
8.1 USG FLEX H Series Product Matrix

Image: A detailed comparison table (USG FLEX H Product Matrix) outlining specifications such as physical ports, throughputs (SPI, UTM, VPN), VPN tunnels, sessions, VLANs, Nebula Cloud option, rack mountability, fanless design, suggested number of users, and suggested WAN speeds across different USG FLEX H series models.
| Feature | USG FLEX 100H / HP | USG FLEX 200H / HP | USG FLEX 500H | USG FLEX 700H |
|---|---|---|---|---|
| Physical Ports | 8x GbE (USGFLEX100HP: 1x 2.5G PoE+) Configurable WAN/LAN | 6x GbE, 2x 2.5G (USGFLEX200HP: 1x 2.5G PoE+) Configurable WAN/LAN | 8x GbE, 2x 2.5G, 2x 2.5G PoE+ Configurable WAN/LAN | 8x GbE, 2x 2.5G, 2x SFP+ Configurable WAN/LAN |
| SPI Throughput | 3000 Mbps (3 Gbps) | 5000 Mbps (5 Gbps) | 10000 Mbps (10 Gbps) | 15000 Mbps (15 Gbps) |
| UTM Throughput (AV+IDP) | 750 Mbps | 1500 Mbps (1.5 Gbps) | 2500 Mbps (2.5 Gbps) | 4000 Mbps (4 Gbps) |
| VPN Throughput | 750 Mbps | 1200 Mbps (1.2 Gbps) | 2000 Mbps (2 Gbps) | 3000 Mbps (3 Gbps) |
| VPN Tunnels | 50 | 100 | 300 | 1000 |
| Max # Concurrent Sessions | 300k | 600k | 1000k | 2000k |
| VLANs Supported | 16 | 32 | 64 | 128 |
| Nebula Cloud Managed Option | Yes | Yes | Yes | Yes |
| Rack Mountable | - | Yes | Yes | Yes |
| Fanless | Yes | Yes | - | - |
| Suggested up to # of Users | 50 | 100 | 300 | 500 |
| Suggested up to Internet Speed | 500 Mbps | 1000 Mbps | 1600 Mbps | 2600 Mbps |
*Throughput speeds are based on industry-standard max testing with largest packet sizes and multiple sessions. Your actual speed test results may vary based on test application.
8.2 Comparison with Prior Generation (USG FLEX 200 vs. USG FLEX 200 H/HP)

Image: A comparison table highlighting the differences between the prior generation USG FLEX 200 and the new generation USG FLEX 200 H/HP, focusing on port configuration, SPI throughput, UTM throughput, VPN throughput, VPN tunnels, max concurrent sessions, and VLANs supported.
8.3 General Device Specifications (USG FLEX200 H Series)
- Model Number: USGFLEX200H-EU0101F
- Product Dimensions: 11.81 x 11.81 x 11.81 inches
- Item Weight: 3.52 pounds
- Manufacturer: Zyxel
- Release Date: October 16, 2023
- Language: English
9. Warranty and Support
For warranty information and technical support, please refer to the documentation included with your product or visit the official Zyxel support website. The website provides access to FAQs, downloads, and contact information for customer service.
Zyxel Support Website: www.zyxel.com/support





