Amazon.com: ARCTIC F12 PWM PST - 120 mm PWM PST Case Fan with PWM Sharing Technology (PST), Very quiet motor, Computer, Fan Speed: 230-1350 RPM - Black/White : Electronics
ARCTIC BioniX F120-120 mm Gaming Case Fan with PWM Sharing Technology (PST), Very quiet motor, Computer, 200–1800 RPM - Red : Amazon.sg: Electronics
Amazon.com: ARCTIC F12 PWM PST - 120 mm PWM PST Case Fan with PWM Sharing Technology (PST), Very quiet motor, Computer, Fan Speed: 230-1350 RPM - Black/White : Electronics