Amazon.com: ARCTIC F14 Silent - 140 mm Case Fan, Ultra-Quiet, Extra Quiet Motor, Computer, Almost inaudible, Fan Speed: 800 RPM - Black, White : Electronics
BioniX F140 | 140 mm Gaming Case Fan with PWM PST | ARCTIC
be quiet! LIGHT WINGS 140mm PWM - Newegg.com
Noctua NF-A14 PWM 140mm Cooling Fan (Square Frame, Brown) 141825
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Amazon.com: Wathai 140mm x 38mm 12V Dual Ball High Airflow 3000RPM DC Brushlss Cooling Computer Case Fan : Electronics