ARCTIC P12 Slim PWM PST - PC Fan, 120mm Case Fan with PWM Sharing Technology (PST), Pressure-optimised, Quiet Motor, Computer, Extra Slim, 300–2100 RPM - Black
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AI Verdict
This 15mm thin, 120mm fan with 1.45 mmH₂O static pressure is for tight spaces needing focused airflow, not maximum air movement.
This fan is a strong contender if you absolutely need its 15mm slim profile to fit into a cramped PC build or for specific radiator mounting. Its pressure optimization helps it perform in restrictive environments, but its overall cooling output is lower than standard 25mm fans.
If space isn't an issue, look for a 25mm thick fan with higher CFM and static pressure ratings for better cooling performance.
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Pros
- Its 15mm installation height fits small form factor cases and tight spots where standard 25mm fans cannot, like near motherboards or radiators.
- Optimized for static pressure, delivering 1.45 mmH₂O, making it effective for radiators and heatsinks.
- PWM Sharing Technology (PST) allows daisy-chaining up to four fans to a single 4-pin header for synchronized control.
- Features a fluid dynamic bearing and a motor designed to reduce frictional heat, potentially extending lifespan.
Cons
- Moves less air (42.10 cfm) and has lower static pressure (1.45 mmH₂O) compared to thicker 120mm fans.
- Users report humming or high-pitched noises at specific RPMs, particularly around 850 RPM.
- Some users experienced increased noise levels after approximately one year of use.
- Performance on thick radiators may be less effective than standard thickness fans.
Dimension Scores
It delivers 42.10 cfm airflow and 1.45 mmH₂O static pressure, which is effective for its slim profile and pressure optimization, but lower than many standard 25mm fans.
While Arctic claims low noise, users report noticeable humming around 850 RPM and increased noise after extended use.
Features a fluid dynamic bearing and a newly developed motor designed for reduced frictional heat and extended lifespan, backed by a 6-year warranty.
The PWM Sharing Technology (PST) with its daisy-chain capability significantly simplifies cable management for multiple fans.
Best For
- Small Form Factor (SFF) PC builds with limited clearance.
- Radiator or heatsink cooling where space constraints prevent standard fan thickness.
- Case intakes or exhausts with dust filters or other airflow obstructions.
Not Recommended For
- Users prioritizing maximum raw airflow in unrestricted environments.
- Noise-sensitive setups where even slight humming at specific RPMs is unacceptable.
Watch Out For
- The fan can produce a noticeable humming noise around 850 RPM.
- Some users report the fan becoming audibly louder after about a year of operation.
- Despite its pressure optimization, its 42.10 cfm airflow is significantly lower than many standard 25mm fans.
- The included screws are only for case mounting; radiator screws are mentioned as included by Arctic, but user experiences might vary.
Full Specifications
| UPC | 840033400930 |
| ASIN | B08QDKGCCW |
| Brand | ARCTIC |
| Voltage | 12 Volts (DC) |
| Wattage | 1.44 watts |
| Material | Polycarbonate |
| Item Weight | 3 ounces |
| Noise Level | 0.3 Sones |
| Manufacturer | ARCTIC |
| Cooling Method | Air |
| Number of Items | 1 |
| Air Flow Capacity | 42.1 Cubic Meters Per Hour |
| Item model number | ACFAN00187A |
| Compatible Devices | Desktop |
| Product Dimensions | 4.72"L x 0.59"W x 4.72"H |
| Power Connector Type | 4-Pin |
| Maximum Rotational Speed | 2100 RPM |
| Global Trade Identification Number | 04895213703130 |
| EU Spare Part Availability Duration | 1 Years |
What Buyers Say
The most surprising finding is how often users report a specific humming noise around 850 RPM, despite Arctic's claims of quiet operation. This fan is consistently praised for its ability to fit into extremely tight spaces due to its 15mm thickness, making it a problem-solver for SFF builds. However, its performance, while optimized for static pressure, doesn't always match that of thicker, higher-performing fans. Some users also noted a degradation in noise performance after about a year of use.
“Look, if you need a fan that's literally half as thick as a normal one to squeeze into your tiny case or get past some RAM, this is it. But seriously, that hum at 850 RPM is real, and mine started getting whiny after like 10 months.”
Common Praise
- Fits into very confined spaces due to its 15mm thickness.
- Effective for cooling radiators and heatsinks in space-constrained builds.
- PWM Sharing Technology simplifies connecting multiple fans.
- Affordable price point for a specialized slim fan.
Common Complaints
- Produces a humming or high-pitched noise at certain RPMs, specifically around 850 RPM.
- Becomes louder or develops an annoying noise after approximately one year of operation.
- Lower airflow and static pressure compared to standard 25mm fans.
- Performance on thick radiators is not comparable to top-tier standard thickness fans.
Ownership Tips
- The humming noise at 850 RPM can be mitigated by adjusting fan curves to avoid that specific speed.
- Regular cleaning might help maintain noise levels over time, given reports of increased noise after a year.
- The daisy-chain feature is a real time-saver for cable routing in multi-fan setups.
- While slim, its static pressure optimization means it's better for restrictive spots than open case airflow.
Frequently Asked Questions
What is the thickness of this fan?
The ARCTIC P12 Slim PWM PST has an installation height of only 15mm, which is significantly thinner than standard 25mm case fans.
Can I connect multiple of these fans together?
Yes, it features PWM Sharing Technology (PST) which includes a daisy-chain solution, allowing you to connect up to four fans in series to a single PWM header.
Is this fan suitable for radiators?
Yes, it is optimized for static pressure (1.45 mmH₂O), making it suitable for use on heatsinks and radiators, especially in tight spaces.
What is the RPM range of this fan?
The fan speed can be controlled via PWM PST from 300 to 2100 RPM, with a 0 RPM mode below 5% PWM.
Does this fan come with mounting screws?
Yes, it includes screws for mounting in a case. Corresponding screws for mounting on a radiator are also included.
Buying Guide
When you're looking at PC fans, especially slim ones, you need to think about where it's going. If you've got a tiny case or a big CPU cooler that's blocking fan space, a 15mm fan like this is your only shot. But remember, thinner usually means less air moved, so you're trading raw power for compatibility. Pay attention to static pressure if it's going on a radiator or through a filter, and airflow (CFM) if it's just moving air around an open case.
Installation Height (15mm)
This is the fan's thickness. Standard fans are 25mm. A 15mm fan is crucial for small form factor (SFF) cases, or when a CPU cooler or RAM modules leave minimal clearance for a fan.
Static Pressure (1.45 mmH₂O)
This measures how well the fan can push air through resistance, like a radiator, a heatsink, or a dust filter. A higher number means it's better at forcing air through obstacles.
Airflow (42.10 cfm)
This is the volume of air the fan moves per minute. Higher CFM is generally better for moving air in an open case, but static pressure is more important when facing resistance.
PWM Sharing Technology (PST)
This feature lets you connect multiple fans in a series to a single fan header on your motherboard. It simplifies wiring and allows all connected fans to be controlled simultaneously by one signal.
Alternatives
If you don't have strict space limitations, look for 25mm thick fans with higher airflow (CFM) for general case ventilation or higher static pressure (mmH₂O) for more demanding radiator cooling.
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