SU1000RTXL2Ua is a 1000VA on-line, double-conversion UPS system for critical server, network and telecommunications equipment. It features a 2U rackmount form factor with an installed depth of only 13.5 in. PRODUCT FEATURES: Expandable battery runtime with optional BP24V28-2U and BP24V70-3U external battery packs; Full-time sine wave 100, 110 or 120V +/-2% output; Uninterruptible Power Supply (UPS) actively converts raw incoming AC power to DC, then re-converts output back to completely regulated, filtered AC output; Operates continuously without using battery power during brownouts to 65V and overvoltages to 138V; NEMA 5-15P input plug; NEMA 5-15R output receptacles; Network-grade AC surge and noise suppression; Zero transfer time between AC and battery operation; Network management interfaces support simultaneous communications via USB port, DB9 serial port and SNMPWEBCARD slot; HID-compliant USB interface enables full integration with built-in power management and auto shutdown features of Windows, Mac OS X and Linux; Supports simultaneous detailed monitoring of equipment load levels, self-test data and utility power conditions via all 3 network interfaces; Includes PowerAlert monitoring software and complete cabling; Emergency Power Off (EPO) interface; Integrated two-bank PDU switching supports load shedding and remote reboot of connected equipment; 3-stage metered current monitoring and battery charge status LEDs; Dataline surge suppression for dialup, DSL or network Ethernet connection; Utility power and voltage regulation LEDs; Audible alarm; Self-test; Fault-tolerant auto-bypass mode; 4-post rackmount accessories included; 2-9USTAND tower kit and 2POSTRMKITWM two post rack & wallmount accessories available; Field replaceable, hot-swappable internal batteries and external battery packs; Attractive all-black color scheme.