Average Reviews:
(More customer reviews)I purchased this UPS to isolate my computers and network disk drives from the AC line in a home office. The unit has worked well for that purpose. It has not had to engage too many times since I installed it, but it has seemed to do the job when it did. I chose this unit because I wanted a UPS that puts out a real sign wave AC waveform when it goes to battery operation. Most home office units put out more like a square wave (cheaper to produce) that does not work well with some modern computer power supplies that are power factor corrected. It fits neatly under my computer table, and shows basic functioning on the front panel. There is also software (both a personal edition and a business addition with more features) that runs on a computer connected through a USB or serial port. This software has very useful information including how much power is being drawn through the unit (on line or battery power), voltage, etc. as well as a history of actions taken. The only issue I found, and it is minor, is that my computer had trouble recognizing the connected UPS when interfaced through a USB hub. I talked to the manufacturer, who was very responsive, and told me it works better when plugged into a direct USB port on the computer. I tried that, and it has worked for me. The total load in my office is normally only about 300 watts as reported by the UPS, so it will power my office on batteries for more than 30 minutes--which almost always outlasts any power outage I experience. The software can be configured to notify the attached computer of a power failure (batteries engaged) and have it shut down the computer when the batteries get below a certain level. I have not had time to try this feature. There are also several test modes that can be accessed through the software to verify operation, for example, by simulating a power failure. I found this very useful to give me confidence in the unit. I am not sure what else to say. It provides sign wave backup AC at a reasonable price.
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