Noctua NF-A12x25 G2 PWM Sx2-PP chromax.Black
- 120mm x 25mm thick fans, 2 pack
- 1800 rpm maximum speed, 4-pin PWM
- 22.5 dB noise level
- 107.3 cubic meters per hour airflow
- 12 volts, 1.8 watts
- 6 year manufacturer's warranty
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A pair of quiet 120mm fans for coolers, radiators and cases, sold as a speed-offset pack in black. The listing gives static pressure and mounting accessory details only loosely.
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ASIN: B0GWJ8TN5NModel: NF-A12x25 G2 Sx2-PPCategory: Case Fans
Overview
A builder who wants low noise on a cooler, radiator or case slot gets two thick fans in the common 120mm size from Noctua. The frame is made of Sterrox LCP, and the PWM connector lets the motherboard set the speed.
Quiet operation at a high ceiling for airflow makes the pair suit a silent-leaning build. The limit is that the listing says high static pressure without giving a number, and it does not itemize screws or cables.
Who it's for
A desktop with 120mm mounts for a tower cooler, radiator or front intake, where noise matters as much as airflow. Builders wanting lighting should look at an ARGB fan.
Pros and cons
- Low listed noise level
- Long manufacturer warranty
- Thick frame for added airflow
- PWM speed control
- Static pressure number not listed
- Mounting accessories not itemized
Performance notes
Fan speed is set by the PWM signal, so airflow and noise rise and fall together with the motherboard curve. A thicker frame gives the blades more room to build pressure, which helps push air through radiators and dense coolers. The listed airflow and noise figures show the ceiling at maximum rotational speed.
Where it stands among case fans
- #3 most-searched brand and model of the 17 case fans lines we track (by search demand, not sales).
From the specs of the 15 case fans we list; not a test result.
Specifications
| Brand | Noctua |
|---|---|
| Model | NF-A12x25 G2 Sx2-PP |
| Dimensions & fit | |
| Fan size | 120mm, 25mm thick |
| Item dimensions L x W x H | 4.72 x 4.72 x 0.98 inches |
| Capacity & performance | |
| Air flow capacity | 107.3 cubic meters per hour |
| Maximum rotational speed | 1800 rpm |
| Noise level | 22.5 dB |
| Wattage | 1.8 watts |
| Cooling method | Air |
| Power & efficiency | |
| Power connector type | 4-pin PWM |
| Voltage | 12 volts |
| Construction & materials | |
| Material type | Sterrox LCP |
| Warranty & support | |
| Warranty | 6 year manufacturer's warranty |
| Other details | |
| Pack size | 2 fans, speed-offset pack |
Frequently asked questions
How do I connect the Noctua NF-A12x25 G2 PWM fans?
They use a four-pin power connector at twelve volts with PWM speed control from a compatible header. The listing does not itemize cables or screws.
What does speed-offset mean in the Noctua NF-A12x25 G2 two pack?
The listing calls it a speed-offset pair but does not describe the offset itself.
Can the Noctua NF-A12x25 G2 fans cool a radiator?
Yes. The highlights list use on coolers, radiators and cases.