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Noctua NA-FC1, 4-Pin PWM Fan Controller (Black), Computers & Tech, Parts & Accessories, Computer Parts on Carousell
cMP 4,1 & 5,1 120mm Noctua PSU fan with Noctua NA-FC1 PWN speed controller- both working. | MacRumors Forums
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Noctua NF-P12 redux-1700 PWM, High Performance Cooling Fan, 4-Pin, 1700 RPM (120mm, Grey) - Newegg.com
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