. The APC Back-UPS Pro models provide premium battery backup and surge protection. Ideal for home or small office electronics networking devices gaming PCs and consoles. APC Back-UPS Pro models provide sinewave output USB charging ports for your mobile devices and increased runtime for your critical electronicsKey Product Info . Audible alarmsBuilding wiring fault indicatorEMI and RFI noise filtering Product Features Audible alarmsProvides notification of changing utility power and UPS power conditions Automatic self-testPeriodic battery self-test ensures early detection of a battery that needs to be replaced. Battery failure notificationProvides early-warning fault analysis on batteries enabling timely preventive maintenance Battery replacement without toolsEnables fast battery replacement lowering Mean Time to Repair (MTTR). Battery-protected and surge-only outletsReserves power capacity and run time for connected equipment that require UPS battery back-up while providing surge only protection for less critical equipment Boost and Trim Automatic Voltage Regulation (AVR)Gives higher application availability by correcting low and high voltage conditions without using the battery (not available on all models). Cold-start capableProvides temporary battery power when the utility power is out. Dataline surge protectionProvides protection of connected equipment from power surges on the data lines. Disconnected battery notificationWarns when a battery is not available to provide backup power. Hot-swappable batteriesEnsures clean uninterrupted power to protected equipment while batteries are being replaced LCD graphics displayText and mimic diagrams that display modes of operation system parameters and alarms. Safety-agency approvedThe UPS is UL1778 Listed USB connectivityProvides management of the UPS via a USB port (not available on all models). User-replaceable batteriesIncreases availability by allowing a trained user to perform upgrades and replacements of the batteries reducing Mean Time to Repair (MTTR) What\'s in the box? . USB cableUser Manual