Upgrading to use teleport functionality. Still works and compatible with the unifi system. Currently deployed in homelab environment. Firewall capabilities are still relevant to today. Great for a homelab setup The Ubiquiti Networks Unifi Security Gateway Pro 4 USG-PRO-4 Unit is a high-quality firewall that offers enterprise networking capabilities. This unit, with model number ubiquiti usg-pro-4, comes in English language and includes one device. As part of Ubiquiti Networks’ product line, it provides reliable and secure networking solutions for businesses and home offices.