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ARCTIC P12 Slim PWM PST (3 Pack) - PC Fan, 120mm Fan, Pressure-optimised
ARCTIC

ARCTIC P12 Slim PWM PST (3 Pack) - PC Fan, 120mm Fan, Pressure-optimised

Bottom line: The ARCTIC P12 Slim PWM PST ($22.19 on Amazon as of 2026-10-21 04:20 UTC): Only 15 mm thick - fits SFF cases and radiators where 25 mm fans will not mount; main trade-off: 34.51 CFM is modest - slim 15 mm depth costs airflow vs 25 mm fans.

$22.19

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Buy on Amazon — $22.19 Compare to similar cooling & fans

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Only 15 mm thick - fits SFF cases and radiators where 25 mm fans will not mount
  • ✓ 1.33 mmH2O static pressure tuned for radiators and dense heatsink fin stacks
  • ✓ PST daisy-chaining runs all 3 fans off one motherboard PWM header
  • ✓ Wide 200-2100 RPM PWM range idles quiet and ramps hard under load

Cons

  • ✗ 34.51 CFM is modest - slim 15 mm depth costs airflow vs 25 mm fans
  • ✗ 0.3 Sone rating still climbs audibly near the 2100 RPM ceiling
  • ✗ Pressure-optimised blades are less efficient as unrestricted case exhaust
  • ✗ No ARGB or lighting - purely a function-first black and grey fan

Manufacturer description

The ARCTIC P12 Slim PWM PST solves a specific problem: your case or radiator clearance won't accept a standard 25 mm fan. At just 15 mm tall, this 120mm fan fits small form factor builds, low-profile heatsinks, and tight radiator sandwiches where a full-thickness fan simply won't mount. ARCTIC tuned the P-series for static pressure rather than raw open-air airflow, so it keeps pushing air through the dense fin stacks and radiator cores that stall lesser fans. Rated static pressure is 1.33 mmH2O with 34.51 CFM (58.62 m3/h) of airflow and a 0.3 Sone noise level. The 4-pin PWM connector spans…

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SpecPicks Verdict

SpecPicks scored ARCTIC P12 Slim PWM PST using a rating × review-volume × price-fit model applied to published specs and reviews across the cooling & fans category. ARCTIC's cooling & fans lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for cooling & fans of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

How thick is the ARCTIC P12 Slim?

It has a 15 mm installation height, compared to the 25 mm of a standard 120mm fan. That 10 mm saving is what lets it fit small form factor cases and tight radiator clearances.

Can I run all three fans from one motherboard header?

Yes. The P12 Slim PWM PST uses ARCTIC's PWM Sharing Technology, so the 4-pin fans daisy-chain together and share a single PWM header while all responding to the same speed curve.

Is this fan good for radiators or just case airflow?

It is pressure-optimised specifically for restricted airflow. ARCTIC rates it at 1.33 mmH2O static pressure and recommends it for heat sinks and radiators, where high-pressure fans outperform high-airflow designs.

How loud is the ARCTIC P12 Slim?

ARCTIC rates it at 0.3 Sone. Because PWM control spans 200 to 2100 RPM, you can set a low-RPM curve for near-silent idle and reserve full speed for heavy load.

How much air does it move?

34.51 CFM, or 58.62 m3/h. That is lower than a full-thickness 120mm fan, which is the expected trade-off for the 15 mm slim profile and the pressure-focused blade design.

Key Features

  • OPTIMISED FOR STATIC PRESSURE: Through high static pressure, the fan guarantees efficient cooling, even with increased air resistance. Suitable for use on heat sinks and radiators
  • STRONG COOLING PERFORMANCE: The performance of the P fans has been noticeably increased through numerous improvements, including upgraded engine technology and a newly developed fan design
  • 300 TO 2100 RPM: Thanks to the 4-pin connector, the fan speed can be controlled via PWM PST. This keeps noise to a minimum while at the same time ensuring maximum cooling performance
  • LOW INSTALLATION HEIGHT: The P12 Slim PWM PST has an installation height of only 15 mm, making it suitable for small form factor cases & for installations for which a 25 mm fan does not fit
  • TECHNICAL DATA: 3 Pack, Fan speed: 200–2100 rpm, Airflow: 34,51 cfm | 58,62 m³/h, Noise Level: 0.3 Sone, Static Pressure: 1.33 mmH₂O, Pin: 4-pin

Full Specifications

BrandARCTIC
ModelACFAN00275A
Voltage12 volts
Wattage3.07 watts
Materiallead
Unit Count1 Count
Noise Level0.3 sones
Part NumberACFAN00275A
CompatibilityPC
Material Typelead
Cooling MethodAir
TECHNICAL DATA3 Pack, Fan speed: 200–2100 rpm, Airflow: 34,51 cfm | 58,62 m³/h, Noise Level: 0.3 Sone, Static Pressure: 1.33 mmH₂O, Pin: 4-pin
Number of Items3
Air Flow Capacity34.51 cfm
Compatible DevicesDesktop
Power Connector Type4-Pin
Warranty Description6 years
Maximum Rotational Speed2100 rpm
Item Dimensions L x W x H4.72"L x 4.72"W x 0.59"H
OPTIMISED FOR STATIC PRESSUREThrough high static pressure, the fan guarantees efficient cooling, even with increased air resistance. Suitable for use on heat sinks and radiators

Ready to buy?

ARCTIC P12 Slim PWM PST (3 Pack) - PC Fan, 120mm Fan, Pressure-optimised is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $22.19

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

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ARCTIC P12 Slim PWM PST (3 Pack) - PC Fan, 120mm Fan, Pressure-optimised
$22.19
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