The ZyXEL ZyWALL 110 VPN Firewall Security Gateway is a reliable and secure networking device that offers gigabit ports for fast and efficient connectivity. With its tested and working status, this unit guarantees a stable and safe internet connection for your devices. This VPN firewall from ZyXEL is designed to provide a high level of security with features such as a standard license category, English language interface, and compatibility with universal operating systems. The unit includes 64 MB of minimum RAM and is a single unit that can support a single device.