ARCTIC F9 PWM PST - 92 mm PWM fan for high performance case with PWM Sharing Technology (PST) (Accessory)
Fan (PWM) 90 mm to replace that of a "CPU ventirade" of the same brand, having lived much, and is still selling at 24.90. Quick and easy exchange, remarkable reduction of noise, indisputable value prices. So I won everything by daring to change