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When we think of Trio, we can't help but think of the chocolate bars, the ones that were like a Club, but not as popular. There's no confectionery inside this PSU, Trio refers to the fact it has three 12 volt rails
So, let's talk power consumption. At moments of peak draw, NVIDIA's7900GTX uses around 85 Watts of power. The gruntier ATI X1900XTX requires a rather heftier 120W, and the dual-VGA 7950GX2 needs awhopping 143W.