Tripp Lite's dual input voltage SM2200RMDVTAA line interactive UPS system maintains 120V nominal output when powered by North American 120V or International 230V input. Protects a variety of computer, networking and other sensitive equipment types from blackouts, voltage fluctuations and transient surges. 3U rack / tower form factor with an installed depth of only 22.5 inches. Expandable battery runtime with optional BP48V24-2U and BP48V60RT3U external battery packs. Uninterruptible Power Supply (UPS) switches to battery-derived AC output during power failures and extreme voltage variations. Line interactive Automatic Voltage Regulation (AVR) offers voltage boost during brownouts and voltage cut during overvoltages to maintain regulated 120v output over an input range of 89 to 148V or 212 to 286V. Includes C20 power inlet with set of 4 international cord sets and both NEMA 5-15R and 5-15/20R output receptacles. Network-grade AC surge and noise suppression. Communications interfaces support communications via USB, DB9 serial and slot for optional network management card. HID-compliant USB interface enables integration with built-in power management and auto shutdown features of Windows and Mac OS X. Supports simultaneous detailed monitoring of equipment load levels, self-test data and utility power conditions via all 3 network interfaces. PowerAlert monitoring software is available via free download. Emergency Power Off (EPO) interface. Integrated 2-bank programmable PDU switching supports load shedding and remote-reboot of up to 2 individual connected devices. 3-stage metered current monitoring and battery charge status LEDs. 95% efficiency in line power mode reduces energy cost and BTU emissions. Utility power and voltage regulation LEDs. Audible alarm. Self-test. Installation accessories for rackmount and upright tower form factors included. Field-replaceable, hot-swappable internal batteries and external battery packs. Attractive all-black color scheme.