APC BK500BLK uninterruptible power supply (UPS) 0.5 kVA 300 W

Data line surge protection Protects connected loads from surges, spikes, lightning, and other power disturbances.
Battery-protected and surge-only outlets Reserves power capacity and run time for connected equipment that require battery back-up while providing surge only protection for less critical equipment LED status indicators Quickly understand unit and power status with visual indicators.
Audible Alarms Provides notification of changing utility power and UPS conditions.
Transformer-block spaced outlets Protect equipment with input transformer blocks without blocking access to other receptacles.
Automatic self-test Periodic battery self-test ensures early detection of a battery that needs to be replaced.
Battery replacement without tools Allows quick, easy battery replacement.
Cold-start capable Provides temporary battery power when the utility power is out.
Hot-swappable batteries Ensures clean, uninterrupted power to protected equipment while batteries are being replaced Automatic restart of loads after UPS shutdown Automatically starts up the connected equipment upon the return of utility power.
Resettable circuit breakers Enables a quick recovery from overload events.
Safety-agency approved Ensures the product has been tested and approved to work safely with the connected service provider equipment and within the specified environment. UL, FCC, CE, C-Tick approvals.