I've just purchased a Powermac, and want to be sure that power surges don't damage the hardware. I'm guessing that a unit that will provide continuous power will cost me somewhere around $100? What do I look for when I check the specs on these units? Would it be safe to buy a used one, or is it better to buy new for the warranty?
If you are referring to a uninterrupted power supply for a computer then you will want to consider the following: sufficient volt/amps to run the computer long enough to shut it down properly, a surge suppression system incorporated in the device with a high joule rating, and/or a supplemental surge protector plugged into the ups system, Line voltage regulation(this keeps the voltage at a normal safe level, steps up the voltage if it falls to low during brownout conditions,lowers voltage during high voltage conditions) hope this helps.