$139 List, $120 on Amazon (https://www.amazon.com/Ubiquiti-Unifi-Security-Gateway-USG/dp/B00LV8YZLK/ref=sr_1_1?ie=UTF8&qid=1544912730&sr=8-1&keywords=ubiquiti+security+gateway).
$75 obo (plus shipping) MintzIT price.
Integration with UniFi Controller
The UniFi® Controller software conducts device discovery, provisioning, and management of the UniFi Security Gateway and other UniFi devices through a single, centralized interface.
Powerful Firewall Performance
The UniFi® Security Gateway offers advanced firewall policies to protect your network and its data.
Convenient VLAN Support
The UniFi® Security Gateway can create virtual network segments for security and network traffic management.
VPN Server for Secure Communications
A site-to-site VPN secures and encrypts private data communications traveling over the Internet.
QoS for Enterprise VoIP
Top QoS priority is assigned to voice/video call traffic for clear calls and lag-free, video streaming.