Capable, Cost-Effective

The GB-850 Firewall UTM Appliance is specifically designed for small to medium size offices. The GB-850 provides gigabit performance with all the features and tools available in larger appliances, but in a space-saving desktop unit and with a budget-friendly cost. The GB-850 combines comprehensive firewall and unified threat management features into a single, dedicated appliance for total perimeter Internet security. The GB-850 provides easy customization with advanced configuration options, routing, gateway failover, and a robust intrusion prevention system.

GB-850 Firewall
GB-850 Firewall

Smaller Sites

Big Power

The GB-850 is designed for organizations seeking the network security features found in enterprise-level firewall appliances but in a smaller cost-effective platform. The GB-850 Firewall UTM Appliance is available in two standard configurations: 50 or unrestricted concurrent outbound users. Additionally the Plus Upgrade option expands the unrestricted version to increase the limits on the system's capabilities including VPNs, security policies, concurrent connections, routing and VLANs. A standard feature is VPN hardware acceleration to off-load intensive VPN encryption and decryption for increased VPN throughput. The GB-850 includes GTA's unique Dynamic Gateway Architecture offering Multi-WAN failover, load sharing, policy based traffic management, and dynamic routing options.

GB-850 Firewall

A Total Solution

Desktop or Rackmount

The GB-850 is a solid, all steel, small footprint unit that can be used in the desktop form factor or rackmounted with the supplied mounting adapter kit. All GTA firewalls combine both standard and advanced features into one easy-to-use appliance. Whether you choose plug-and-play for basic perimeter security or more advanced options like Gateway Failover and IP Aliasing, you'll experience the ease of use of GTA's proprietary secure GB-OS firewall operating system.

Enhance the GB-850 with optional features to provide total perimeter security. Optional features such as additional Mobile IPSec Client, PPTP, L2TP and SSL Client licenses, Mail Proxy Anti-Spam and Anti-Virus subscriptions or GTA's Web Content Filtering service are easy to add with a simple activation code. There is no additional hardware or software installation required.

GB-OS Graphic


Our Turn-key Firewall Operating System.

All GTA firewall systems are powered by GB-OS, an original turn-key firewall operating system. GB-OS is a totally self-contained solution that integrates an operating system with innovative hybrid UTM firewall technology into a single high performance, compact system.
Learn more about GB-OS


GB-850 Upgrade 50 to Unrestricted Users
GB-850 Plus Upgrade, from Unrestricted Users
GB-850 High Availability Option, Single License
GB-850 Configuration Service
GTA Mobile VPN, Single Add-On License
GTA Mobile VPN, 5-User Add-On License
GTA Mobile VPN, 10-User Add-On License
GTA Mobile VPN, 25-User Add-On License
GTA Mobile VPN, 50-User Add-On License
GTA Mobile VPN, 100-User Add-On License
GTA Mobile VPN, 250-User Add-On License


GB-850 Mail Proxy Anti-Spam Subscription, 12 Months
GB-850 Web Content Filtering Subscription, 12 Months

Support Plans

Available Support Plans
More Information