I am getting a UPS (Uninterrupted Power Supply), currently here are my options:

They all seem to have less than 500W. I was wondering if they will work fine with my 500W PSU? In terms of price they are all the same (around $60) and I am not really sure about their differences.

I hope you can also recommended what's best between them. I am using a mid-end gaming rig BTW.


To definitely answer this question, you will need to use something like a Kill A Watt, which will tell you that actual amount of electricty you are using. The amount that you are using really depends on your hardware components such a CPU, # of hard drives & RPM speeds, graphics cards, etc.

The first two UPSs look the same to me as far as specs go and the last URL won't load for me.


They will work just fine with your computer. Note the Batteries & Runtime graph on the APC site. You are probably looking at a usage of about 200-300W on your computer, so that gives you 5 min of battery time.

You should look at the product groups (https://www.apc.com/products/family/index.cfm?id=27&tab=models). Under "Model list" chose 500W and you can see the estimated time under it. I would recomend at least a 540 Watts / 900 VA model.

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