Noctua NF-S12A FLX, PWM, ULN Fans Video Review
 

The Noctua NF-S12A FLX, PWM, ULN Fans are outstanding and will fit the bill no matter what case cooling application you have. The FLX is a flexible fan for most applications. PWM stands for pulse width modulation and this fan has a 4pin connector. ULN stands for ultra low noise and it's near silent. All these fans perform well, are reliable & quiet

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