Noctua 140mm Dual All-Black Fan Review (2026): A Spec-Based Look
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This noctua 140mm dual all black fan review covers the NF-A14x25 G2 PWM set. You get two 140mm fans designed for quiet operation. The set uses SSO2 bearings for longevity. Each fan measures 140x25mm with a 14cm anti-vibration gasket. The fans are slightly offset in speed to reduce acoustic interaction. This chromax.Black version includes black mounts and screws. It is built for high static pressure tasks. The packaging also contains low-noise adaptors and cables. This spec-based look explains who benefits from this dual setup.
What stands out
- Two 140mm fans with slightly offset speeds to avoid acoustic interaction
- SSO2 bearing rated for over 150,000 hours of operation
- Includes Low-Noise Adaptors and extension cables for flexible control
- Black anti-vibration mounts and 14cm gaskets for tighter radiator seals
- Safety certifications from UL and TÜV with protection against reverse polarity
Who it fits
Good fit for
You should choose this set if you are building a system with a 280mm water cooling radiator. The offset speed design helps when two fans operate side by side. It is also ideal for push-pull configurations on radiators. If you need case intake or exhaust fans that run quietly, this fits. The included low-noise adaptors let you reduce speed further. The all-black aesthetic suits builds where you want a uniform look without bright colors.
Who should skip it
Skip this if you need a single fan for a standard 120mm slot. This is a dual set for 140mm spaces. You might want a different option if you prefer white components, as this is chromax.Black. It is also less suitable if you only need basic airflow and do not care about the specific acoustic engineering. The set includes many accessories you may not use. If you do not need the included low-noise adaptors or splitter cables, a simpler kit may be more practical for your specific case layout.
Verdict: This dual fan set offers precise acoustic engineering and high durability for specific cooling setups. It is a solid choice for 280mm radiators or push-pull mounts where noise and vibration matter.
Key specs explained for this fan set
Fan Size: 140mm
This dimension defines the physical footprint of the fan blades. You need a case or radiator with a 140mm opening to install these units. Larger fans move more air at lower speeds, which often reduces noise compared to smaller 120mm fans. Check your case specifications to ensure compatibility with this standard size before purchasing.
Bearing Type: SSO2
SSO2 stands for Static Stabilizer Oil Bearing. This technology keeps the fan shaft centered using magnetic forces and oil lubrication. It reduces friction and wear, leading to a longer lifespan and smoother operation. You benefit from quieter running and less maintenance over time. This bearing type is a standard for high-reliability computer cooling components.
Model: NF-A14x25 G2 PWM Sx2-PP chromax.black
This code identifies the specific product variant. The G2 indicates it is the second generation of this fan design. Sx2-PP means it is a dual set optimized for push-pull configurations. The chromax.black label confirms the all-black aesthetic. You use this model name to verify you are buying the correct color and configuration for your build.
Width: 5.51 inches
This measurement describes the lateral span of the fan unit. It ensures the fan fits within standard mounting holes. You should compare this width against your case fan slots to confirm physical clearance. Accurate width data helps you plan cable routing and ensure the fan does not obstruct nearby components like RAM or VRM heatsinks.
Height: 0.98 inches
This value represents the depth or thickness of the fan frame. A 0.98-inch height is standard for 25mm thick fans. You need sufficient space between the fan and the radiator or case wall to accommodate this depth. If your space is tighter, you might need thinner fans. This spec helps you avoid physical interference during installation.
Design and build details
According to the listing, the Noctua NF-A14x25 G2 PWM set features a chromax.Black finish. This all-black aesthetic includes black anti-vibration mounts and screws. The fans use Sterrox LCP construction with an ultra-tight tip clearance. This material choice supports the progressive-bend impeller design. You get two fans that are slightly offset in speed by approximately 25rpm. This offset prevents acoustic interaction when the units run together. The set includes Low-Noise Adaptors and extension cables for flexible control. You can adjust airflow without changing the physical hardware.
The physical dimensions are 5.51 inches wide and 5.51 inches long. The height is 0.98 inches, confirming the 25mm thickness. The total weight is 1.12 pounds for the pair. This compact profile fits standard 140mm openings in cases or radiators. The fans are ideal for push-pull setups or side-by-side mounting. You can use them for 280mm water cooling radiators or as case intake and exhaust units. The SSO2 bearing is rated for more than 150,000 hours of operation. This suggests long-term reliability for continuous use. Safety certifications from UL and TÜV are included. The design protects against reverse polarity and over voltage. You get a straightforward, durable build focused on quiet performance.
Setup and daily use guide
The package includes everything needed for immediate installation. You receive two fans, low-noise adaptors, extension cables, and a splitter cable. The set also comes with black anti-vibration mounts and 14cm anti-vibration gaskets. These gaskets help create a tighter seal when mounting the fans on radiators. This reduces vibration transfer and keeps the acoustic profile stable. The fans are designed for push-pull configurations or side-by-side mounting. This makes them suitable for 280mm water cooling radiators or standard case intake and exhaust positions. The listing notes that the two fans are slightly offset in speed by approximately 25rpm. This specific tuning avoids undesired acoustic interaction phenomena. You will not hear a single, repetitive drone. Instead, the sound is more diffuse and less noticeable. The SSO2 bearings are rated for a mean time between failures of over 150,000 hours. This suggests long-term reliability without frequent maintenance. The unit is protected against reverse polarity, overvoltage, and short-circuits. These safety certifications from UL and TÜV indicate robust electrical standards. Setup is straightforward due to the included mounting hardware. The fans connect via standard PWM headers. You can use the splitter cable to control both fans from a single motherboard header. The low-noise adaptors allow you to limit maximum voltage if you need even quieter operation. Daily use involves the fans running at variable speeds based on system temperature. The progressive-bend impeller and winglets optimize airflow efficiency. You benefit from consistent cooling performance with minimal noise. The all-black design fits seamlessly into modern builds. The fans operate quietly during idle and scale up smoothly under load. No additional software is required for basic operation. The hardware handles the speed adjustments automatically through the motherboard.
Compatibility and Maintenance Tips
Before adding this dual fan set to your build, verify your case or radiator supports 140mm openings. The NF-A14x25 G2 PWM fans are 25mm thick, so check clearance against tall RAM or CPU coolers. Since these are PWM fans, ensure your motherboard has available fan headers. The set includes low-noise adaptors and cables, but you may need additional splitter cables if you plan to daisy-chain more units. Regular upkeep is minimal; simply dust the Sterrox LCP blades and Flow Acceleration Channels periodically to maintain airflow efficiency. This set suits users who need precise push-pull configurations or side-by-side mounting for 280mm radiators. It fits well alongside other high-static pressure options if you prioritize quiet operation over raw speed. The SSO2 bearing ensures long-term reliability without frequent maintenance. Keep in mind the slight speed offset helps reduce acoustic resonance, making this a thoughtful choice for sensitive listening environments.
Check before you buy
- Verify your case or radiator supports 140mm fan mounts.
- Check clearance for the 25mm fan thickness near RAM.
- Confirm motherboard has available PWM fan headers.
- Ensure you have enough splitter cables for your setup.
The product at a glance
Noctua 140mm Dual All-Black Fan Set
Best for: Push-pull radiator setups and side-by-side mounting
- Fan Size
- 140mm
- Max Fan Speed
- 1500rpm
- Connector Type
- 4-Pin PWM
- Bearing Type
- SSO2
- Compatible Device
- Radiator
- Dimensions
- 5.51 × 5.51 × 0.98 inches
View on Amazon: Noctua 140mm Dual All-Black Fan Set Affiliate link
This dual fan set includes two 140mm Noctua NF-A14x25 G2 PWM fans in a chromax.Black finish. The units feature an SSO2 bearing with a mean time to failure over 150,000 hours. They are slightly offset in speed to reduce acoustic interaction. The package includes anti-vibration mounts and extension cables. It suits users needing push-pull configurations or side-by-side installation on 280mm radiators.
Pros
- Includes two 140mm fans with offset speeds to minimize acoustic interference
- SSO2 bearing rated for over 150,000 hours of operation
- Comes with Low-Noise Adaptors and extension cables for flexible setup
- Black anti-vibration mounts and gaskets included for secure mounting
Cons
- Higher weight at 1.12 pounds compared to single fans
- No mention of software control or speed customization beyond hardware adapters
- Requires two fan headers or a splitter cable for operation
Good fit if
- You need a push-pull setup for a 280mm radiator
- You want to avoid acoustic interaction from side-by-side fans
- You prefer a premium all-black aesthetic for your build
Skip if
- You only have one available fan header
- You need a single fan for a 120mm slot
- You require software-based fan curve control
Verdict: Noctua NF-A14x25 G2 Chromax Black is a specialized dual-fan solution for users who need synchronized, quiet airflow in tight spaces like 280mm radiators. It fits builders prioritizing acoustic clarity and premium build quality over single-fan simplicity.
Specifications side by side
| Spec | Noctua 140mm Dual All-Black Fan Set |
|---|---|
| Fan Size | 140mm |
| Max Fan Speed | 1500rpm |
| Connector Type | 4-Pin PWM |
| Bearing Type | SSO2 |
| Compatible Device | Radiator |
| Dimensions | 5.51 × 5.51 × 0.98 inches |
| Weight | 1.12 pounds |
| Model | NF-A14x25 G2 PWM Sx2-PP chromax.black |
Frequently asked questions
What is the total weight of the Noctua 140mm Dual All-Black Fan Set?
The set weighs 1.12 pounds. This weight covers the two fans, the included mounting hardware, and the low-noise adaptors. You can expect a sturdy feel from the Sterrox LCP construction, which contributes to the overall mass and durability of the package.
How wide is the combined unit for case compatibility?
The set measures 5.51 inches in width. This dimension is critical for fitting into 280mm radiator slots or tight side-by-side mounting positions. You need to ensure your case has a 5.51-inch opening to accommodate the dual-fan setup without interference.
What makes this fan set suitable for push-pull setups?
It is designed specifically for push-pull radiator configurations and side-by-side mounting. The dual-fan solution allows for synchronized airflow, which is ideal for users who need quiet operation in tight spaces. This setup maximizes cooling efficiency while maintaining acoustic clarity.
What are the physical dimensions of the individual fans?
Each fan measures 140mm by 25mm. The total set height is 0.98 inches, and the length is 5.51 inches. These standard dimensions ensure compatibility with most 140mm openings in PC cases and radiators, provided you account for the 25mm thickness.
Who is the ideal buyer for this specific fan set?
This set suits builders who prioritize acoustic clarity and premium build quality. It is best for users needing synchronized, quiet airflow in tight spaces like 280mm radiators. If you value specialized dual-fan solutions over single-fan simplicity, this product aligns with your needs.
What is the model number for this chromax black set?
The model is NF-A14x25 G2 PWM Sx2-PP chromax.black. This identifier confirms the specific variant with the all-black aesthetic. You can use this model number to verify compatibility with your motherboard headers and to locate the correct driver or manual online.