APC SUA1000 Smart-UPS 1000VA for servers and voice and data networks (Discontinued by Manufacturer) APC Smart-UPS, 1000 VA / 670 W, Input 120 V / Output 120 V, Interface Port DB-9 RS-232, SmartSlot, USB Includes CD with software, Smart UPS signaling RS-232 cable, User Manual, USB cable Automatic Self Test; Automatic voltage regulation (AVR) Audible alarms; Building wiring fault indicator; Overload indicator Hot-swap batteries; Intelligent battery management; Replace battery indicator; User-replaceable batteries