Tripp Lite SU3000RTXR3U SmartOnline UPS System 3000VA high power density on-line, double-conversion UPS system for critical server, network and telecommunications equipment / Special "XR" version offers larger internal batteries than standard "XL" model / 3U rackmount form factor with an installed depth of 26 inches / Expandable battery runtime with optional BP72V15-2U and BP72V28RT-3U external battery packs / Full time sine wave 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 L5-30P input plug / NEMA 5-15, NEMA 5-15/20R and NEMA L5-30R 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 mains power conditions via all 3 network interfaces at once / 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 / Mains power and voltage regulation LEDs / Audible Alarm / Self-test / Fault-tolerant auto-bypass mode / 4 post rackmount accessories / 2-9USTAND tower kit and 2POSTRMKITWM two post rackmount hardware accessories available / Field replaceable, hot swappable internal batteries and external battery packs / Attractive all-black UPS design