Yes, and this has been our experience. People running servers without the protection of a good UPS with AVR is likely asking for trouble. I have had drives fried, wireless router dying until my IT guy told me about input AC voltage variation. Your utility service may not be delivering you a constant 120V AC! We just recently had a severe wind/rain storm and our double UPS systems were working extra hard (input voltage was swinging wildly from 90VAC to 150 VAC) on the digital display. All our Synology server, WD array, Flexnet drive plus the WHR-G300N survived. Our computers are protected by a seperate UPS with AVR. I heard our friend's NAS died and she didn't have a UPS. For UPS, we did not go cheap. Buy quality with AVR and you won't have to deal with component failure ever, except perhaps hard drives' wear and tear.