Fan Coolers
Common types:
- • Axial Fans – Most common, airflow parallel to fan axis.
- • Centrifugal (Blower) Fans – Airflow perpendicular, higher pressure.
- • DC vs. AC – DC (12V typical) for PCs; AC for industrial use.
- • PWM Control – Allows speed regulation via duty cycle.
- • Sleeve vs. Ball Bearing – Sleeve: quieter, shorter life; Ball: durable.
Key Specs: RPM, CFM, dB(A), static pressure, voltage, connector type (e.g., 3-pin, 4-pin).