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ZyXEL ZyWALL USG20 Internet Security Firewall with 4 Gigabit LAN/DMZ Ports, 2 IPSec VPN, SSL VPN, and 3G WAN Support

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  • Hybrid VPN, both SSL and IPSec VPNs supported for flexible deployment.
  • Comprehensive threat protection with firewall, VPN and content filtering.
  • Flexible security zone using VLAN technology to segregate local networks.
  • User-aware policy engine can set bandwith or network access based on user login.
  • Bandwidth management for traffic prioritization for VoIP or mission critical applications.
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This item ZyXEL ZyWALL USG20 Internet Security Firewall with 4 Gigabit LAN/DMZ Ports, 2 IPSec VPN, SSL VPN, and 3G WAN Support
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Customer Rating 3 out of 5 stars (314) 4 out of 5 stars (80) 4 out of 5 stars (38) 4 out of 5 stars (860) 3 out of 5 stars (172) 3 out of 5 stars (94)
Price Unavailable $300.00 $453.25 $57.99 $117.95 $139.99
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Zyxel® 2020 PC Amazon.com Nebraska Blvd Olivabel
Connectivity Technology Wired wired Ethernet Ethernet usb Ethernet
Data Transfer Rate 150 400 300 1,000 1 1,000 MB per second
Item Dimensions 1.2 x 5.83 x 8.66 in 6 x 9 x 1 in 6 x 14 x 10 in 2.68 x 11.22 x 8.78 in 11 x 3.25 x 9.5 in 5.5 x 8.6 x 2.3 in
Item Weight 0.8 lb 2 lbs 7.45 lbs 1.81 lbs 1.39 lbs 1.58 lbs
Total LAN Ports 4 4 5 4 4 4
Wireless Compatibility 802.11bgn 802.11 a/b/g/n 802.11abg 802.11 a/b/g/n 802.11n

Product description


Product Description

The ZyWALL USG 20 is a Unified Security Gateway, integrated with complete, enterprise-level and advanced security solutions designed for Small/Medium Business (SMB) recommended for up to 5 PC users. Its flexible configuration helps network administrators set up the network and enforce security policies more efficiently. With certified by ICSA SPI Firewall and IPSec VPN, the ZyWALL USG 20’s security features also include IPSec VPN, SSL VPN, Firewall and Content Filter. It also provides bandwidth management, for QoS of VoIP or mission critical applications. Moreover, IPSec VPN and SSL VPN design for telecommuters and home workers can access data more easily and safely at home. Remote access with SSL VPN requires only a standard web browser. ZyWALL USG 20’s excellent throughput is the key to implement features of an enterprise level to provide a full-time, non-stop and secure service.

From the Manufacturer

Big Security for Small Businesses -Unified Security Gateway ZyWALL USG20

The ZyWALL USG20 is a Unified Security Gateway designed to provide complete, enterprise-level advanced security solutions to Small and Home Office networks, recommended for up to 5 PC users. Its flexible configuration is designed to help network administrators efficiently set up, manage, and enforce network security policies.

The USG20’s web-content filtering engine goes a step beyond simple URL blocking. It allows users to manage the level of content filtering, giving complete control over what types of websites that can be accessed on the network. Administrators can choose between BlueCoat and Commtouch web filtering services.

To further defend networks and provide greater control and ease of use, the USG20 also employs an anti-spam service to flag and discard commercial and unwanted e-mail messages, protecting important information from getting lost in the clutter.

Application Patrol gives you detailed control over the applications allowed to run on your network, while the built-in 150Mbps throughput firewall and web-content filtering protect your network from DoS attacks, phishing, and other threats.

Built with powerful Integrated High Performance Security architecture designed for Gigabit connections, a VPN throughput of 75Mbps, up to 6,000 max sessions and 5 concurrent IPSec VPN tunnels, the USG20 has the power to monitor and protect your network without sacrificing network performance.

  • Robust hybrid VPN (IPSec, SSL, and L2TP*)
  • Easily connect with mobile devices
  • IPv6 Support
  • QoS options for latency-sensitive applications
  • Compatible with Vantage Reporting and Management software
  • 30day trial of the antivirus software

* Enabled by ZLD3.0 firmware upgrade

Flexible, secure VPN options

The USG20 is designed to allow secure VPN connections no matter what device or network settings are being used. IPSec VPN support allows secure connections to branch offices, partners, and headquarters; road warriors and telecommuters can use SSL to securely access the company network without having to install VPN software.

Easy Mobile Access

The new ZLD3.0 firmware upgrade enables L2TP support on all USG devices, making it easy for Android, iOS, and other mobile devices to establish VPN tunnels to remote networks directly from their native settings.

IPv6 Ready

With the advent of the new ZLD3.0 firmware, the USG20 is fully compatible with both IPv4 and IPv6 networks. Full backward compatibility allows VPN tunnels to be created between networks newly upgraded to IPv6 and older IPv4 networks, ensuring a seamless transition and painless network upgrades.

VoIP Optimized

The USG20’s network optimization functionality makes it far more than a network security device. Bandwidth management options let administrators prioritize latency-sensitive applications like VoIP and videoconferencing, ensuring high-quality connections without lag or performance issues.

Vantage Management and Reporting

The USG20 supports the use of ZyXEL’s Vantage CNM and Vantage Reporting software, allowing centralized management and monitoring of multiple ZyWALL devices on a single network.

Vantage Reporting offers a comprehensive set of real-time and historical reports including firewall attacks, bandwidth usage, Website usage, and more - all organized into an automated, easy-to-read format that can be viewed from anywhere. Administrators can use this data to easily identify security problems and their causes and take prompt action.

Vantage CNM provides a suite of diagnostic and management tools that allows management of multiple ZyWALL devices from a centralized interface, reducing the time, cost, and complexity involved in VPN and security management. VPN monitoring allows network administrators to actively troubleshoot VPN problems as they occur, while centralized configuration of UTM functionality allows network administrators to manage license subscriptions, update devices, and isolate and repair security problems across all ZyWALL devices on a network.

Powerful Email security

The ZyWALL USG Series delivers industry-leading email protection against spam, phishing and virus-laden emails, powered by Commtouch. The high performance Commtouch technology comes from the unique recurrent pattern detection (RPD) mechanism that scours millions of new patterns each day (24x7x365) to block spam messages in real-time. In addition, the ZyWALL USG applies sender-based IP reputations to remove over 80% of unwanted mails and to offer zero-hour virus outbreak protection, capable of blocking or delaying suspicious messages hours before commercial anti-virus signatures are available.

ZyWALL USG Series Firewall Comparison

Model USG20W USG20 USG50 USG100 USG200 USG300 USG1000 USG2000
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Recommended number of PC Users 1-5 1-5 1-10 10-25 25-50 50-75 75-200 200-500
Unlimited User (No Per Node Limitation)
High Performance multi-layer threat Protection

Hardware Specifications

10/100/1000 Interfaces (ALL GbE Copper) 4x LAN/DMZ, 1x WAN 4x LAN/DMZ, 1x WAN 4x LAN/DMZ, 2x WAN 5x LAN/DMZ, 2x WAN 5x LAN/DMZ, 2x WAN
7x Configurable 5x Configurable 6x Configurable

System Capacity and Performance

SPI Firewall Throughput (Mbps) (Largest Packet Size) 150 150 180 180 250 300 400 2000
VPN Throughput (AES)(Mbps)
(Largest Packet Size)
75 75 90 90 90 130 180 600
UTM Throughput (AV+IDP) (Mbps)(Largest Packet Size) 24 30 40 80 100 400
Max Sessions 6000 6000 10000 20000 40000 60000 500000 1000000
Max Concurrent IPSec VPN Tunnels 5 5 5 50 100 200 1000 2000
Max Concurrent SSL VPN Tunnels 1 1 5 5 10 25 250 750
Included SSL VPN Users 1 1 2 2 2 2 5 5
Multiple WAN Load Balance / Fail Over

Security Licenses

Anti-Virus (ZyXEL or Kaspersky) 1 Year












iCard Content Filtering (BlueCoat or Commtouch) 1 Year
















Total Security Service Kit(1 Year Kaspersky AV, 1 Year ZyXEL IDP, 1 Year BlueCoat CF bundle) ICTS1YUSG50 ICTS1YUSG100 ICTS1YUSG200 ICTS1YUSG300 ICTS1YUSG1000 ICTS1YUSG2000
iCard SSL Upgrade Licenses(One Time) 2-5 Users SSL2TO5USG50 2-5 Users SSL2TO5USG100 2-10 Users

2-10 Users SSL2TO10USG300

2-25 Users

10-25 Users

5-25 Users

25-50 Users

5-50 Users

5-250 Users

25-250 Users

50-250 Users

5-50 Users

5-250 Users SSL5TO250USG2000

5-750 Users

50-250 Users

50-750 Users

750-2000 Users

Product information


Technical Details

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Additional Information

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
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on December 18, 2015
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