Device Type | Next-Generation UTM and VPN Firewall |
Form Factor | Desktop |
Product Series | USG FLEX |
Model Number | USGFLEX100 REV2 |
Power Supply | External power adapter |
Power Consumption | 12.96 W (max) |
Weight | 900 g |
Target Deployment | Small to medium businesses |
ZYXEL USGFLEX100 REV2 UTM VPN Firewall Hardware Only





Key Benefits

AI-Powered Summaries from Online Customer Reviews
Eye-Insights™ are generated by proprietary AI that analyzes real online customer reviews to highlight top pros and key product features. While we aim for accuracy, insights are provided “as-is” and individual results may vary.
- Gives IT teams flexibility with hardware-only configuration and custom licensing
- NebulaFlex compatibility ensures versatile cloud or local management options
- Ideal upgrade path from USG40v2 with improved hardware reliability
Product Overview
The ZYXEL USGFLEX100 REV2 is a next-generation UTM and VPN Firewall appliance built to strengthen network security while maintaining flexible deployment options. Intended for professional environments, especially in small- to mid-sized businesses, this version delivers hardware-only protection, giving IT administrators the freedom to apply custom licenses and configurations based on their security policies and evolving needs.
Designed with NebulaFlex compatibility, this device can easily switch between cloud-managed or traditional stand-alone modes—ensuring adaptability across various business infrastructures. While the unit does not include SFP ports, it features standard network connectivity options suitable for typical office and light enterprise setups. As a successor to the USG40v2, this model continues that platform's legacy with enhanced performance and hardware efficiencies.
Though licensing and full technical details are not provided, the USGFLEX100 REV2 is clearly positioned for users who want reliable security hardware with future-proof capabilities such as VPN support and firewall provisioning. This appliance is particularly well-suited to security-conscious environments where centralized management via Zyxel's Nebula platform can drive operational efficiency and respond quickly to emerging threats.
Specifications
Product Overview
Physical & Environmental
Dimensions (W x D x H) | 216 x 147 x 33 mm |
Operating Temperature | 0°C to 40°C (32°F to 104°F) |
Storage Temperature | -30°C to 70°C (-22°F to 158°F) |
Operating Humidity | 10% to 90% (non-condensing) |
Mounting Options | Desktop |
Cooling | Fanless |
Cloud Management & Licensing
Management Interface | Nebula Control Center (cloud) or Standalone Web GUI/CLI |
NebulaFlex Support | Yes |
Licensing Model | Modular licensing (optional security packs) |
Included Licenses | None (Hardware Only) |
VLAN Support | Yes, 802.1Q |
Interfaces
WAN Ports | 2 x GbE RJ-45 |
LAN/DMZ Ports | 5 x GbE RJ-45 |
Console Port | 1 x RJ-45 |
USB Ports | 1 x USB 3.0 |
SFP Ports | None |
Total Ethernet Ports | 7 |
Switching Capacity | 7 Gbps |
SPI Firewall Throughput | 900 Mbps |
VPN Throughput | 270 Mbps |
UTM Throughput | 360 Mbps |
Concurrent Sessions | 300,000 |
New Sessions per Second | 6,000 |
IPSec VPN Tunnels | 100 |
SSL VPN Users | 30 |
Compliance & Origin
Certifications | FCC, CE, C-Tick, BSMI, VCCI, RoHS |
Country of Origin | Taiwan |
TAA Compliant |
Advanced Security Features
Firewall Type | Stateful Packet Inspection (SPI) and Deep Packet Inspection (DPI) |
Intrusion Detection and Prevention (IDS/IPS) | Available via license |
Antivirus | Available via license |
Anti-Spam | Available via license |
Content Filtering | Available via license |
Application Control | Available via license |
GeoIP Filtering | Available via license |
Botnet Detection | Available via license |
SSL Inspection | Yes |