550va battery backup

Protect computers and other delicate electronic equipment from power surges and data loss with this APC Back-UPS uninterrupted power supply. It provides surge protection as well as battery backup so that nothing is damaged or lost during a thunderstorm. This APC Back-UPS uninterrupted power supply also includes a USB port for charging phones and other devices.
Features
490-joule rating
Absorbs a high amount of energy to adequately protect your equipment and prolong the life of the unit.

7 NEMA 5-15 outlets
Include 5 with battery backup and 2 surge-only outlets to protect the equipment in your home office.

Full-time multi-pole noise filtering
With 5% IEEE surge let-through helps prevent interference.

Audible alarms
Provides notification of changing utility power and UPS power conditions.

USB charging
Charge mobile devices with 1.5A USB port.

5' power cord
For easy room placement.

Building Wiring Fault Indicator
This LED informs users of potentially dangerous wiring problems in the wall circuit.

Wall mounting sockets
Keyhole sockets for mounting the UPS in structured wiring closets, behind desks, in basements, garages, etc.