Amazon.com: ARCTIC F12 PWM - 120 mm PWM Case Fan, PWM-Signal regulates Fan Speed, Very Quiet Motor, Computer, Fan Speed: 230-1350 RPM - Black : Electronics
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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
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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
Amazon.com: ARCTIC F12 PWM PST - 120 mm PWM PST Case Fan with PWM Sharing Technology (PST), Quiet Motor, Computer, Fan Speed: 230-1350 RPM - White (ACFAN00198A) : Electronics
ARCTIC F12 PWM PST - Value Pack (5pc) - Standard Low Noise PWM Controlled Case Fan with PST Feature - Newegg.com