APC Back-UPS, 500VA/300W, Input 120V/ Output 120V, Interface Port DB-9 RS-232
General Features: Addl Surge Protected Outlets , Audible Alarms , BlockSafe Outlets/Cord Extensions , Easy Overload Recovery , Hot Swap Batteries , Internet Ready: Protection for Fax/Modem Connection , Lightning and Surge Protection , Modem Protection , Multipath Protection , Option Switches , Site wiring fault indicator , Software , User Replaceable batteries
Ships with: User Manual , Basic UPS signalling RS-232 cable , CD with software