Amazon.com: ARCTIC F12 PWM PST (4 Pack) - 120 mm PWM PST Case Fan with PWM Sharing Technology (PST), Very Quiet Motor, Computer, Fan Speed: 230-1350 RPM - Black : Electronics
Arctic F12 - Case Fan 3pin -120mm - cnstech
ARCTIC F12 PWM PST (White) 120 mm PWM PST Case Fan