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Black 120 mm slim case fan 15 mm thick with 4-pin PWM connector

ARCTIC

ARCTIC P12 Slim PWM PST 120 mm 15 mm fan accessory

SKU CH-9VTB-3AHKE

A 120 mm, 15 mm slim PWM case fan optimised for high static pressure on radiators and heatsinks, running 300–2100 RPM with 71.53 m³/h airflow and 1.45 mm/H₂O pressure

  • High static pressure drives airflow through dense radiators
  • 15 mm slim profile fits small-form-factor cases
  • PWM PST shares speed signal across multiple fans
  • 300–2100 RPM range balances silence and performance
  • 3 sone rating keeps operation nearly inaudible

15 mm slim 120 mm PWM fan

The ARCTIC P12 Slim PWM PST is a 120 mm case fan with a 15 mm installation height. It uses a 4-pin PWM connector and supports PWM Sharing Technology so multiple fans can run from one header. The pressure-optimised blade design targets radiators and heat sinks in compact builds. Speed ranges from 300 to 2100 RPM.

Static pressure limits at low thickness

At 15 mm thick the fan delivers 1.45 mm/H2O static pressure and 71.53 m³/h airflow. The slim frame reduces blade chord, so maximum pressure is lower than thicker 25 mm models. Noise is rated at 0.3 Sone at typical speeds. Performance drops when the fan is restricted by dense fin stacks or long duct runs.

Check header current and case clearance

Verify the motherboard fan header can supply enough current for every fan daisy-chained through the PST cable. Measure the available depth at the mounting location; the 15 mm height fits where a 25 mm fan cannot, but adjacent cables or drive cages may still interfere. Ensure the 4-pin connector reaches the header without strain.

How it compares

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Price $18.99
Typical for this category: the median of 8,808 items is $16.99.

Specifications

No published specifications for this item yet.

Questions about this item

Should I choose the 15 mm slim model or a standard 25 mm fan?

The 15 mm slim model fits small form factor cases and tight clearances where a 25 mm fan cannot be installed, while still delivering 71.53 m³/h airflow and 1.45 mm/H₂O static pressure.

What does the 2100 RPM top speed actually deliver inside a case?

At 2100 RPM the fan moves 41.1 CFM with 1.45 mm/H₂O static pressure, making it effective on radiators and heatsinks while staying at 0.3 Sone.

How does the 4-pin PWM PST connector limit control in practice?

The 4-pin PWM PST connector allows speed control from 300 to 2100 RPM and lets multiple fans share one motherboard header for synchronised operation.

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