The equipment is designed to be mounted in a 19'' rack.
According to the manufacturer's specifications, UniFi Security Gateway Pro 4 has a total packet switching capacity of 4 Gbps - Full Line Rate Layer 3 Forwarding, for packets 512b or larger. For smaller 64-byte packets, the manufacturer claims the ability to switch more than one million packets per second, with the brochure specification specifying this value at 2,400,000 pps. According to the data, throughput with IPS/IDS, DPI, firewall, and bandwidth management options enabled has a performance of 250Mbps
Below, we present how the main menu of the UniFi OS Console looks like
● Basic configuration, Internet Thread Management OFF,
● Security protection mode level 1, optimized for performance, Internet Thread Management ON - Level 1 Maximum Performance,
● Security protection mode level 5, optimized for security, Internet Thread Management ON - Level 5 Maximum Protection,
In the second and third variants with configured security management, the Ubiquiti UniFi USG-PRO-4 network device had IPS/IDS Intrusion Detection System/Intrusion Prevention System, DPI Deep Packet Inspection and firewall options enabled. It is worth noting that the functionalities for individually set security rules, which probably can lower the final performance, were not enabled.
The tests of actual device performance are therefore simplified. In TCP tests, the device managed to saturate to a maximum speed of 800 Mbps with one active WAN port. For the UDP test the result was a bit of a surprise, as the values obtained were half those for TCP. With the aforementioned IPS/IDS, DPI, firewall and bandwidth management options enabled, the simplified tests resulted in throughputs between 400 and 500 Mbps for both UDP and TCP protocols. Test results under the described conditions are illustrated by the following graphics.
Max. energy consumption | 7W |
Weight | 366g |
Built-in flash memory | 2GB |
Dimensions | 135 x 135 x 28.3 mm |
Power supply | 12VDC, 1A (included) |
System memory | 512 MB DDR2 RAM |
Network Interfaces: Serial console port / Data ports | (1) RJ45 serial / (3) 10/100/1000 Ethernet ports |
Power input | 9 to 24 VDC, supported voltage range |
Layer 3 transmission performance: Packet size: 64 bytes / Packet size: 512 bytes or more 1000000 pps | 1000000 pps / 3 Gbps (link speed) |
Processor | Dual-core 500 MHz MIPS64 with hardware acceleration for packet processing |
Operational temperature range | -10 to 45 °C |
Certificates | CE, FCC, IC |
Operational humidity range | 10 to 90% non-condensing |
Wall-mountable | Yes |
They have minor drawbacks as well as a number of advantages. A certain complication in implementing a security gateway from Ubiquiti UniFi is the form of power supply, which is not compatible with the UniFi® SmartPower Redundant Power System, as users of Ubiquiti network equipment may be used to. Any failure of the power supply requires repair of the entire unit. Additionally, the power outlet itself is a cloverleaf type, not a standard computer outlet, which can be problematic when you want to use power backup on a UPS with a typical business design.
The UniFi Security Gateway Pro 4 from Ubiquiti Inc. seems to be a complete solution for small businesses, where extended functionality or a larger number of supported networks are unnecessary. However, it is worth to keep in mind that the simplification of configuration entails many limitations which do not apply to the line of products apart from UniFi series. When expanding the network, the equipment may turn out to be poorly scalable and require replacement with other solutions. The issue does not apply to Ubiquiti UniFi wireless networking systems, which scale well and can be conveniently expanded.