The included front and top fans are 140mm actually. Though to be honest that is one of my few gripes so far-they don't seem to have improved the quality of their fans. Like the original, don't feel like they are moving much air and look as though they are running at no more than 1200 RPM. I swapped front with a green 120mm anyway. The on/off button for the fan LEDs is a nice feature for sure.
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