The CyberPower Standby CP550SLG uninterruptible power supply (UPS) safeguards a home office PC and other electronics (monitors, printers, scanners, speakers, fax machines, CD/DVD players and iPods) from surges, spikes, sags, brownouts and other power abnormalities. Its composite integrated circuitry offers advanced lightning protection. The CP550SLG unit has a capacity of 550VA/330Watts, eight (8) NEMA 5-15R receptacles, widely-spaced to accommodate transformer-based plugs. Its compact design allows for horizontal or vertical placement, or it can be conveniently mounted on a wall. This UPS has a maintenance-free, 12V/5.5Ah battery and offers connectivity via one (1) HID USB port. Protection for phone/network (RJ11) is also included. EMI/RFI filters increase the immunity of the load to disturbances and surges. PowerPanel Personal Edition UPS Management software is included to monitor the vitals of the UPS and will safely shutdown the system in case of a power outage.