A versatile UPS developed for the harshest power conditions in the world! APC Smart-UPS RT 5000VA Rack-mountable UPS belongs to a family of high-density, performance UPSs for voice and data networks, medical labs, and light industrial applications. This flexible form factor allows standardization across multiple applications. High power internal chargers allow virtually unlimited additional matching battery packs to comply with aggressive runtime demands of business-critical systems. Customers with harsh power environments looking for extremely tight voltage and frequency regulation, internal bypass, and input power factor correction typical of double conversion online topology will get them in the Smart-UPS RT5000VA Rack-mountable UPS .