12cm Viper Black Fan
S-FLOW fan blade design delivers 30% higher airflow
High performance and PWM auto speed control
Product Code: AK-FN065
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• High performance 12cm Viper Black fan
S-FLOW fan blade design delivers 30% higher airflow
Super silent with PWM auto speed control
Hydro Dynamic Bearing extends fan life up to 50,000 hours
High performance 12cm fan with S-FLOW blades supplying 30% more airflow than a standard fan at the same speed. The greater performance combined with PWM automatic speed control allows the fan noise to be kept to a minimum.


The Viper fan creates more focused airflow providing blind-spot cooling, which makes it an ideal solution for a case or heatsink fan. HDB (Hydro Dynamic) bearings extend fan life and further enhance noise reduction.
S-FLOW fan blade design comparison:
S-FLOW blade delivers strong and
centralized air-flow
NORMAL blade
S-FLOW fan blade design delivers 30% higher airflow
Hydro Dynamic Bearing structure advantage:
HDB uses a dynamic pressure field and an anti-leak seal to maintain constant bearing lubrication, extends fan life up to 50,000 hours and lowers fan noise.