ARCTIC P12 Pro PST CO — 120mm PWM Case Fan with PST Daisy-Chain
Overview
The ARCTIC P12 Pro PST CO is a high-performance 120mm PWM case fan engineered for demanding cooling applications. With a speed range of 600–3000 RPM, 77 CFM airflow, and 6.9 mmH₂O static pressure, it excels at pushing air through radiators, dense mesh panels, and perforated front panels where resistance is high. The PST (PWM Sharing Technology) daisy-chain connector allows multiple fans to be synchronized from a single motherboard header, and the CO (Continuous Operation) dual ball bearing ensures long-term reliability at sustained high speeds. Backed by a 6-year warranty.
High Static Pressure Performance
Efficient at High Air Resistance: Thanks to high static pressure (6.9 mmH₂O), the P12 Pro moves air effectively through tight spaces — ideal for radiators, perforated panels, and mesh filters where standard fans lose efficiency.
Revised Fan Blade Design: The 7-blade design has been optimised for an ideal balance of maximum airflow (131 m³/h / 77 CFM) and smooth, quiet operation at just 25 dB(A) at full speed.
Minimum Gap Dimensions: Tight tolerances between blade tips and the fan frame maximise static pressure and airflow efficiency, reducing turbulence and improving cooling performance.
PST — PWM Sharing Technology (Daisy-Chain)
The P12 Pro PST CO features a 4-pin PWM input + 4-pin PWM output connector configuration. This allows multiple fans to be connected in series (daisy-chained) and controlled simultaneously from a single PWM header on the motherboard — no fan hub required. All fans in the chain respond identically to the PWM signal, ensuring consistent speed and noise levels across your build.
Dual Ball Bearing (DBB) — Continuous Operation
The CO designation indicates this fan uses a Dual Ball Bearing (DBB) with an extended rotor shaft, specifically designed for continuous 24/7 operation at high rotational speeds. Unlike sleeve bearings, dual ball bearings maintain performance and lifespan even when mounted horizontally or vertically, making them ideal for servers, NAS systems, and always-on workstations.
SOTA Microcontroller
An integrated state-of-the-art (SOTA) microcontroller reduces motor noise, compensates for load fluctuations, and protects against inrush currents and reverse polarity — contributing to smoother, quieter, and more reliable operation across the full speed range.
Automated Balancing
Each fan undergoes an automated measuring and balancing process during manufacture, applying balancing compound with pinpoint accuracy. This ensures exceptional rotational precision, minimising vibration and noise at all speeds.
6-Year Warranty
ARCTIC backs the P12 Pro PST CO with a 6-year manufacturer warranty — a reflection of the confidence in its build quality and long-term durability.
What’s Included
- 1× ARCTIC P12 Pro PST CO 120mm PWM Fan
- Mounting screws
Technical Specifications
General
| Type | Fan |
| Suitable Location | Computer case |
| Colour | Black |
| Quantity per Pack | 1 |
| Screws Included | Yes |
| Warranty | 6 years |
Performance
| Fan Diameter | 120 mm |
| Fan Speed (Min) | 600 RPM |
| Fan Speed (Max) | 3000 RPM |
| Airflow | 131 m³/h |
| Max Airflow | 77 CFM |
| Static Pressure | 6.9 mmH₂O |
| PWM Support | Yes |
| Fan Blades | 7 |
Bearing & Connector
| Bearing Type | Dual Ball Bearing (DBB) |
| Fan Connector | 4-pin + 4-pin (PST) |
| Cable Length | 0.4 m |
Power
| Fan Voltage | 12 V DC |
| Starting Voltage | 3.3 V |
| Fan Current | 0.33 A |
Physical Dimensions
| Fan Dimensions (W×D×H) | 120 × 120 × 25 mm |
| Fan Weight | 185 g |
Operating Conditions
| Operating Temp | 0°C to 40°C |
Packaging Data
| Package Type | Box |
| Package Width | 125 mm |
| Package Depth | 127 mm |
| Package Height | 30 mm |
| Package Weight | 226 g |
| EAN | 4895265000140 |