TO SERVE & PROTECT! Power surges can cause costly damage to computer parts, but they can be protected with this Uninterruptible Power Supply (UPS). The unit is a 650 VA, 390-Watt system with two power outlets. If a power outage occurs, this terrific UPS provides three minutes of full-load, back-up time to get files closed and the computer shut down. It also offers protection against overloads and short circuits.