Tripp Lite SU5000RT4UTF 5000VA / 5kVA / 4500 watt on-line, double-conversion UPS system offers complete power protection for critical server, network and telecommunications equipment in a 6U rack/tower configuration. Maintains full-time sine wave output within 2% of 208 and 120V nominal at 60Hz during brownouts as low 100V and overvoltages as high as 300V. Double-conversion operation converts raw input from AC to DC, then resynthesizes output power back to perfect sine wave AC with enhanced protection from harmonic distortion, fast electrical impulses and other hard-to-solve power problems not addressed by other UPS types. HID-compliant USB interface enables integration with built-in power management and auto shutdown features of Windows and Mac OS X. Front panel LEDs and LCD readout with scroll controls support front-panel visual monitoring of all major UPS functions. L6-30P input, plus 2 L6-30R, 2 L6-20R and 12 5-15/20R outlets.