Full-time Surge Protection & Battery Backup A surge protector & battery backup ensures that the computer's electrical power remains clean and stable. In the event of total power loss it allows the system to be shut down safely. This unit has a capacity of 750VA/450Watts, twelve (12) 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, user-replaceable 12V/7Ah battery. Protection for phone/network (RJ11/RJ45) included. EMI/RFI filters increase the immunity of the load to noise disturbances. Software is included to monitor the vitals of the UPS and safely shut down the system in case of a power outage.