For a year now I have the Mustek PowerMust 650. In addition to a reliable power supply to the connected computer, including the monitor, it protects the device also against overvoltage. Here with us are short blackouts in power nearly every day, and the voltage fluctuations significantly. The device shows up with a short beep an undervoltage at what happens very often. During this time the UPS powers the computer reliably with 220 volt current, which should increase the lifespan of a computer significantly. If it came earlier to computer crashes, or even to turn off the computer by short brownouts, the UPS begins this now reliably. If necessary, the supplied software stores all the work automatically, and drives down your computer safely. All in all, the UPS is in instabielen power grids, it is that one lives in an old building or near industrial areas, an excellent protection for sensitive devices.
