The Tripp Lite SU1500RTXLCD2U SmartOnline UPS provides pure sine wave AC output to protect server and network equipment in data centers and computer rooms. With 0 transfer time between on-line and battery modes for uninterrupted operation, it is ENERGY STAR-certified to save on electricity use and lower costs. Its 6 outlets, extended run capabilities, optional external battery packs, and other features offer reliable power and environmental protection.