I use 2 of these in my ITX build. It's enough to keep my components cool with no worries. My build: 8600k overclocked to 4.5GHz, EVGA 1080ti, 16gbx2 g.skill f4-3200c16-16gvk, asus z370i and Thermaltake v1 core. I also use 1 Noctua NF-A20 fan on the front and 2 Noctua NF-A9 PWM fans on my Noctua NH-D9L cooler. Works great since August 2018. Not noisy at all.
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