
Ideal for smaller networks, branch offices or retail locations, the z4 is a cost-effective network security solution that simply just works, right out of the box. This appliance performs well under heavy workloads like content filtering, intrusion prevention and VPN encryption, ensuring these smaller networks stay up and running with no hiccups. This small, quiet appliance takes up minimal space and is recommended for networks with 10-50 users. The Untangle z4 is part of the Untangle NG Firewall Appliances range.
specs | z4 |
Recommended users | 10 – 50 |
Processor | Intel Celeron Quad Core |
RAM | 4GB |
Storage | 32 GB mSATA SSD |
USB ports | 4 |
Dimensions | 156 x 127 x 37mm (6.1 x 5 x 1.4″) |
Firewall Throughput | 950 Mbps |
NGFW Throughput* | 500 Mbps |
Power Supply | 12V3A Adapter |
Extra
- One year hardware warranty
- Cost effective, energy and space saving
- Additional software subscription available to meet your needs

Untangle z4 Plus Firewall Appliance

ConnectDS provide Resell and Managed Untangle Firewall Services
Built for smaller networks, branch offices or retail locations, the z4 Plus is a cost-effective network security solution. The appliance includes many of the same features as the most popular Untangle appliance, the z4 with additional RAM and storage. These added elements provide a superior performance for businesses that want the option of running the NG Firewall alongside multiple apps. This small, quiet appliance takes up minimal space and is recommended for networks with 10-50 users.
specs | z4 Plus |
Recommended users | 10 – 50 |
Processor | Intel Celeron Quad Core |
RAM | 8GB |
Storage | 256 GB mSATA SSD |
USB ports | 4 |
Dimensions | 156 x 127 x 37mm (6.1 x 5 x 1.4″) |
Firewall Throughput | 950 Mbps |
NGFW Throughput* | 500 Mbps |
Power Supply | 12V3A Adapter |
Extra
- One year hardware warranty
- Cost effective, energy and space saving
- Additional software subscription available to meet your needs
Untangle z4 FAQ
IS UNTANGLE A GOOD FIREWALL?
Untangle make excellent firewalls. Their solutions can cover SMEs and enterprise-level businesses.
IS PFSENSE BETTER THAN UNTANGLE?
pfSense and Untangle offer different solutions that each have their own merits.
HOW MUCH DOES UNTANGLE z4 COST?
Untangle costs depend on the specific requirements and terms.
WHAT OS IS UNTANGLE z4 BASED ON?
Linux. Untangle utilises open-source Linux software as an operating system.
DO YOU ONLY PROVIDE UNTANGLE z4 UNITS?
No, we also provide the z6, z12, and z20 models.
HOW BIG IS THE UNTANGLE z4?
156 x 127 x 37mm (6.1 x 5 x 1.4″)