Noctua NF-A12x25 G2 PWM Sx2-PP chromax.Black
Status: Noctua NF-A12x25 G2 PWM Sx2-PP chromax.Black: Unavailable on Amazon as of . SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.
Bottom line: The Noctua NF-A12x25 G2 PWM Sx2-PP chromax.Black: Speed-offset pairing (+/- ~50rpm) between the two fans cancels acoustic beat interference; main trade-off: 25mm thickness plus gasket can crowd RAM or top-panel clearance in compact cases.
As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →
Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:
Similar: Noctua NF-A12x25 G2 PWM chromax.Black — $34.95 on Amazon as of 2026-10-21 04:20 UTC (price may vary).
Similar: Noctua NF-A14x25 G2 PWM — $44.95 on Amazon as of 2026-10-21 04:20 UTC (price may vary).
Similar: Noctua NF-A12x25 G2 PWM Sx2-PP — $64.95 on Amazon as of 2026-10-21 04:20 UTC (price may vary).
Pros & Cons
Pros
- ✓ Speed-offset pairing (+/- ~50rpm) between the two fans cancels acoustic beat interference
- ✓ Sterrox LCP impeller with ultra-tight tip clearance holds static pressure on 240/360mm radiators
- ✓ SSO2 bearing rated MTTF over 150,000 hours, so fan replacement is a decade-out concern
- ✓ Ships with 12cm anti-vibration radiator gasket, LNA, extension and splitter cables in the box
- ✓ All-black chromax finish with black anti-vibration mounts suits dark or windowed builds
Cons
- ✗ 25mm thickness plus gasket can crowd RAM or top-panel clearance in compact cases
- ✗ 1800rpm ceiling means slower spin-up headroom than 2000rpm+ radiator-focused fans
- ✗ Speed-offset pairing only pays off when both fans run together; a single-fan buyer gains nothing
SpecPicks Verdict
SpecPicks scored Noctua NF-A12x25 G2 PWM Sx2-PP chromax.Black using a rating × review-volume × price-fit model applied to published specs and reviews across the cooling & fans category. Noctua'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.
Key Features
- Dedicated dual fan set with two NF-A12x25 G2 PWM 120x25mm fans that are slightly off-set in speed (+/- ~50rpm) in order to avoid undesired acoustic interaction phenomena
- State-of-the-art engineering (Progressive Bend impeller with winglets and Centrifugal Turbulator, Flow Acceleration Channels, AAO frame) and construction (Sterrox LCP, ultra-tight tip clearance)
- Ideal choice for push-pull applications as well as situations where two fans are operating side by side (240/360mm water cooling radiators, case intake or exhaust fans, etc.)
- All-black chromax version with black anti-vibration mounts; 12cm anti-vibration gasket for tighter seal on radiators, fan screws, Low-Noise Adaptor (LNA), extension cable and splitter cable included
- Trusted Noctua quality with premium-grade SSO2 bearing (MTTF > 150,000 h), safety certifications from UL and TÜV, protected against reverse polarity, overvoltage and overcurrent (short-circuits)
Full Specifications
| Brand | Noctua |
|---|---|
| Model | NF-A12x25 G2 PWM Sx2-PP chromax.black |
| Voltage | 12 volts |
| Wattage | 1.8 watts |
| Material | Sterrox LCP |
| Unit Count | 2 Count |
| Noise Level | 22.5 db |
| Part Number | NF-A12x25 G2 PWM Sx2-PP chromax.black |
| Material Type | Sterrox LCP |
| Cooling Method | Air |
| Number of Items | 2 |
| Vibration/Rumble | Yes |
| Air Flow Capacity | 107.3 cubic meter per hour |
| Compatible Devices | Desktop |
| Power Connector Type | 4-Pin |
| Warranty Description | 6 year manufacturer’s warranty |
| Maximum Rotational Speed | 1800 rpm |
| Item Dimensions L x W x H | 4.72"L x 4.72"W x 0.98"H |
| Full listing title | Noctua NF-A12x25 G2 PWM Sx2-PP chromax.Black, High-End Quiet Fans 2x120mm | High Airflow & Static Pressure, Low-Noise 25mm Thick Fans, Speed-Offset 2-Pack, for Coolers/Radiators/Cases, 1800rpm 4-Pin |
Ready to buy?
Amazon shows no buyable offer for Noctua NF-A12x25 G2 PWM Sx2-PP chromax.Black at the last check. A similar in-stock product is Noctua NF-A12x25 G2 PWM chromax.Black. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
Related Cooling & Fans
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- How to Build a Windows 98 Retro PC in 2026
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Best 1440p Gaming GPUs in 2026
- Best Retro Handhelds in 2026 — From $35 to $500
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
More reviews from the SpecPicks archive
Browse all reviews →- Best Budget Gaming Monitors Under $300 for 1080p in 2026
- OpenAI Codex Now Drives Windows Autonomously: What It Means for Local AI Rigs
- Best Racing Wheels and Controllers for Sim Racing in 2026
- Adafruit's 2026 I2S Microphone Guide Brings Real-Time Audio to CircuitPython
- Ryzen 5 5600G vs Ryzen 7 5700X for a Budget Gaming + Streaming PC
- Best Gaming SSD for PC Builds in 2026: 5 Picks Tested
- Self-Host a 24/7 FM Radio Station on a Raspberry Pi Zero 2W
- RTX 3060 Drop-In vs AM4 Rebuild for an i7-9700K in 2026
- Best Budget GPU for RPCS3 PS3 Emulation in 2026
- HyperX QuadCast 2 vs Blue Yeti: Best Streaming Mic in 2026
- Local LLM Setup in 2026: AMD GPU Guide by Model Size
- NVIDIA Cosmos 3 vs Ideogram 4.0: Which Open Image Model to Run on 12GB
- Best Budget GPU for Stable Diffusion: Why the RTX 3060 12GB Still Wins
- Ryzen AI Max+ 'Gorgon Halo' 192GB vs RTX 3060 12GB for Local LLMs
- Best GPU for Gemma 3 27B in 2026: Where 12 GB Stops Being Enough
- Intel's Bartlett Lake Core 9 273PQE Loses to a Four-Year-Old CPU
- AMD Ryzen 7 7700X3D Lands as a Newegg Exclusive at $329
- Best Gaming Controller for PC and Console in 2026: 5 Picks Compared
- Best Internal SSDs Under $100 in 2026
- AMD Ryzen AI Halo Mini PC: Open-Source Power Analyzed
- Best SATA/IDE-to-USB Adapters for Ripping Old Drives in 2026
- Qwen3.6-27B at 72 Tok/s on RTX 3090: What's Real
- What Rig Runs an AI Agent Locally? Building for the Agent Era
- Asus ProArt PA27USD OLED Lands — and What 4K Gamers Can Buy for Less
Earliest SpecPicks reviews
Browse full archive →- Best GPU for Llama 3.1 8B (2026)
- Best GPU for Qwen 3 14B (2026)
- Best GPU for Qwen 3 32B (2026)
- Best GPU for Llama 3.1 70B (2026)
- Best GPU for DeepSeek-R1 32B (2026)
- Best GPU for Llama 3.1 405B (2026)
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 14B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 70B on NVIDIA GeForce RTX 5090
- How to run DeepSeek-R1 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 4090