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3pin Tacho Output 4015 7000rpm 40X40 Computer Fan 6V 12V Brushless DC Fan 24V 40mm - China Brushless DC Fan and 40mm Fan
4-Wire fans
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Sofullue CPU Fan 8010 80mm for DC Brushless 12V 2600rpm Silent Mini Micro Quiet Computer Cpu Server Axial Cooling Fans Tachometer - Walmart.com
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