Tripp Lite's SMX1500XLRT2U intelligent, line interactive rack/tower uninterruptible power supply prevents data loss, downtime and equipment damage due to power outages, voltage fluctuations and transient surges. Requires only two rack spaces (2U) in a standard rack enclosure. Large internal batteries offer 25 minutes half load runtime and 10 minutes at full load. Runtime is expandable with optional BP36V15-2U external battery pack. Maintains regulated 230V nominal output without using battery power during brownouts and overvoltages from 151 to 282V. 1500VA / 1000 watt power handling capability and full time sine wave output offers guaranteed compatibility with networking, telecom and other sensitive electronic applications. Includes a total of 8 outlets arranged in 3 load banks that are individually switchable via software interface to reboot select equipment on demand or automatically shed less significant loads to extend battery runtime for more critical equipment.