Great for a Mac Mini!
I have only owned this product for about a week, so I can't comment on its longevity. However, I have two other Cyperpower models, one of which I bought about a year ago, that are still working perfectly. I am amazed at how much runtime the CP425SLG reports to provide for my Intel Mac Mini (about 40 mins). I pulled the plug from the wall and let it run for about 15 minutes, after which it was still going strong. I also have other small peripherals plugged in to the other battery backup outlets. It integrates seamlessly with Snow Leopard--just go to System Preferences-->Energy Saver to control how you want the UPS to behave in the event of a power outage. I have another Cyberpower hooked up to a PC (the 685AVR model, which you can get at big box electronic stores among other places) and I like the Cyperpower Windows software even better because you get more information (e.g. the number of watts being drawn from the battery backup outlets, which helps you determine if you're in danger of overloading them and the accuracy of the reported runtime). Some people complain about the batteries in these units giving up the ghost after two or three years, but I don't think you can expect more than that with any UPS. The batteries ARE user-replaceable and available on E-Bay for a reasonable price. Unfortunately you will get killed on the shipping because they weigh a ton. Still, this is a great, inexpensive unit for a Mac Mini or an entry- to mid-level PC. Buy.com often runs specials on Cyberpower, but even at the regular price they're a steal. In my opinion, you just can't buy cheaper insurance!
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