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ZyXEL USGFLEX100 REV2 USG FLEX 100 Network Security Firewall Appliance - 5-Port Gigabit Ethernet - 900 Mbps Throughput - 30 VPN - SFP Slot
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Product Features
Technical Overview
The USG FLEX 100 employs a multi-layered security architecture that includes malware protection, intrusion prevention, web content filtering, URL filtering, application control, email security, DDoS mitigation, and anti-spam capabilities. Encryption standards cover DES, 3DES, AES-256, MD5, SHA-1, SHA-2, and SHA-512, providing robust data protection for VPN and traffic inspection.
Network connectivity is handled through five auto-sensing Gigabit Ethernet ports that support 10/100/1000Base-T standards, ensuring compatibility with modern network infrastructure. The integrated SFP slot allows for fiber optic connections, extending deployment flexibility in environments requiring longer distance or higher bandwidth uplinks.
Relevant factors for this section include Firewall Protection Supported, Firewall Throughput, Encryption Standard, Total Number of Ports. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
The appliance's 900 Mbps firewall throughput ensures minimal latency for inspected traffic, maintaining network performance while applying security policies. Support for 30 VPN tunnels enables secure site-to-site or remote access connections, with 33.75 MB/s VPN throughput balancing encryption overhead with data transfer speeds.
Multi-Layered Threat Protection
Combines malware, intrusion prevention, web filtering, and application control to detect and block threats at the network edge before they reach internal systems.
- Cloud query express mode for precise detection
- DNS and URL content filtering
- Automated threat containment
Flexible Management Options
Supports both on-premises and ZyXEL Nebula cloud management, allowing IT teams to choose between local control or centralized cloud-based administration.
- Device Insight for network visibility
- Two-factor authentication support
- Manageable via web interface
Deployment / Use Cases
The USG FLEX 100 serves as a cost-effective edge security solution for organizations needing enterprise-grade protection without the complexity of larger firewall platforms. Its compact size and desktop format make it suitable for wall-mounted network cabinets, server room shelves, or office equipment racks where space is limited.
For distributed organizations, multiple units can be deployed consistently across locations with centralized policy management through ZyXEL's Nebula cloud platform. The appliance's secure WiFi capabilities extend protection to wireless networks, ensuring remote work and guest access remain isolated from critical business systems.
Branch Office Security
Ideal for securing satellite offices with dedicated internet connections, providing firewall protection, VPN connectivity back to headquarters, and content filtering for local users.
Retail or Hospitality Networks
Deploy at point-of-sale locations to segment payment systems from guest WiFi, apply application controls, and meet PCI compliance requirements for network security.
Physical Profile
Measuring 8.50 inches wide by 5.80 inches deep by 1.30 inches tall (216 x 147.30 x 33 mm), the USG FLEX 100 occupies minimal rack space while providing full firewall functionality. Its 1.87-pound (850 g) weight and desktop form factor allow for flexible placement on shelves, in wall-mounted enclosures, or standard 19-inch rack shelves with optional mounting kits.
The low 12.5-watt power consumption reduces operating costs and heat generation, making it suitable for environments with limited cooling or power distribution. The compact dimensions ensure compatibility with most network furniture and enclosures without requiring dedicated rack units.
- Width
- 8.50" (216 mm)
- Depth
- 5.80" (147.30 mm)
- Height
- 1.30" (33 mm)
- Weight
- 1.87 lb (850 g)
What's in the Box
The package includes all essential components for immediate deployment out of the box.
Highlights
- 5 Gigabit Ethernet ports for WAN/LAN connectivity
- 900 Mbps firewall throughput with multi-layered protection
- Supports 30 concurrent VPN tunnels
- SFP expansion slot for fiber uplink options
- Low 12.5-watt power consumption
- Compact desktop form factor (8.5" x 5.8" x 1.3")
- On-premises or Nebula cloud management flexibility
- Includes power adapter and console cable
Specifications
| Specifications | |
|---|---|
| Manufacturer | ZYXEL Communications Corp. |
| Manufacturer Part Number | USGFLEX100REV2 |
| Brand Name | ZYXEL |
| Product Line | USG FLEX |
| Product Model | 100 |
| Product Name | USG FLEX 100 Network Security/Firewall Appliance |
| Product Type | Network Security/Firewall Appliance |
| Technical Information | |
| Firewall Protection Supported | Malware Protection,Threat Protection,Web Content Filtering,URL Filtering,Intrusion Prevention,Application Control,Email Security,Distributed Denial of Service (DDoS),Anti-spam |
| Firewall Throughput | 900 Mbit/s |
| Encryption Standard | DES,3DES,AES (256-bit),MD5,SHA-1,SHA-2,SHA-512 |
| Number of VPN Supported | 30 |
| Interfaces/Ports | |
| Total Number of Ports | 5 |
| USB | Yes |
| Number of Network (RJ-45) Ports | 5 |
| Media & Performance | |
| VPN Throughput | 33.75 MB/s |
| Network & Communication | |
| Ethernet Technology | Gigabit Ethernet |
| Network Standard | 10/100/1000Base-T |
| I/O Expansions | |
| Total Number of Expansion Slots | 1 |
| Expansion Slot Type | SFP |
| Number of SFP Slots | 1 |
| Management & Protocols | |
| Manageable | Yes |
| Power Description | |
| Power Consumption | 12.50 W |
| Physical Characteristics | |
| Height | 1.30" (33 mm) |
| Width | 8.50" (216 mm) |
| Depth | 5.80" (147.30 mm) |
| Weight (Approximate) | 1.87 lb (850 g) |
| Miscellaneous | |
| Package Contents | USG FLEX 100 Network Security/Firewall Appliance Power Adapter RJ-45 - RS-232 Cable for Console Connection |
User Manual
FAQ
What is the firewall throughput of the USG FLEX 100?
The USG FLEX 100 delivers 900 megabits per second (Mbit/s) of firewall throughput. This capacity allows the appliance to inspect and filter network traffic at wire speed for typical small business internet connections while applying security policies like intrusion prevention, web filtering, and application control without creating bottlenecks.
How many VPN connections does this firewall support?
This appliance supports up to 30 concurrent VPN connections with a throughput of 33.75 megabytes per second (MB/s). It handles both site-to-site VPNs for connecting branch offices and remote access VPNs for mobile workers, using encryption standards including AES-256, 3DES, and SHA-512 for secure tunneling.
What types of network ports are included?
The USG FLEX 100 includes five auto-sensing Gigabit Ethernet ports (RJ-45) that support 10/100/1000Base-T standards. These ports can be configured for WAN, LAN, or DMZ zones based on your network architecture. Additionally, there is one SFP expansion slot for optional fiber optic connections and one USB port for potential future expansions.
Can this firewall be managed remotely?
Yes, the appliance supports both local on-premises management through a web interface and centralized cloud-based management via ZyXEL's Nebula platform. This flexibility allows IT teams to choose between direct device control or cloud administration for multi-site deployments, with features like Device Insight providing network visibility and two-factor authentication adding security layers.
What security features are included?
The USG FLEX 100 provides multi-layered protection including malware scanning, intrusion prevention, web content filtering, URL filtering, application control, email security, DDoS mitigation, and anti-spam capabilities. These features work together to detect and block threats at the network edge, with cloud query express mode enhancing detection accuracy and automated containment responding to identified risks.
Is this appliance suitable for rack mounting?
The USG FLEX 100 has a compact desktop form factor measuring 8.50" wide by 5.80" deep by 1.30" tall (216 x 147.30 x 33 mm) and weighing 1.87 pounds (850 g). While it doesn't include built-in rack ears, its dimensions allow placement on standard 19-inch rack shelves or in wall-mounted enclosures. Optional mounting kits may be available for secure rack installation in network cabinets.
| Qty | Price | Available |
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