“what is this unit peak amperage? Can this unit power a PNY Nvidia GTX 550 Ti, at high speed?”

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• I would go with something with a little higher continuous power rating. The continuous rating on this is around 440 watts. I'm too lazy to take the side cover off my system to check it right now, but in my Gigabyte P43 system I have a 650 watt continuous supply. The quad-core Intel CPU uses 130 watts by itself. John

  Answered by Oldradioguy 10 years ago

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• Peak is 22 AMPs

  Answered by James 11 years ago

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• I am running it on a NVIDIA 660 GTX with no issues.

  Answered by Novulo 12 years ago

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