The Ubiquiti Networks Unifi Security Gateway Pro 4 USG-PRO-4 is an enterprise-grade firewall unit designed for high-performance networking. With a minimum RAM of 64 MB and a processor speed of 1 GHz, this device provides fast and secure connectivity for multiple devices. The unit is in retail format and comes with a California Prop 65 warning. Ubiquiti Networks, a trusted brand in networking, ensures reliable performance and security for your network infrastructure. Ideal for businesses looking for a comprehensive networking solution, the USG-PRO-4 offers top-notch features and capabilities.Pulled from a network we replaced. Powers on. If it doesn’t work let me know and I will offer a refund for up to 2 weeks after delivery.