We invented the modular UPS. Now we're reinventing it. The APC Smart-UPS Modular Ultra 5 – 20kW allows you to enable more power, space, and IT at the edge. Gain resiliency to help assure uptime with a single-phase UPS that grows with your business. Maximize performance with long-life lithium-ion batteries and 2.5x more power in a 50% smaller, 60% lighter unit. EcoStruxure™ Ready functionality enables easy remote management.