Description
The InWin Neptune AN series represents a significant leap in thermal management, focusing on the "silent frontier" of PC cooling. By integrating a one-piece turbine blade design with an optimized noise-reduction spectrum, these fans minimize turbulence while maximizing air pressure. Whether you choose the 120mm AN120 or the larger 140mm AN140, the Neptune series ensures your system remains cool under heavy loads without the distracting hum of traditional fans.
This product is for:
- PC Builders seeking a balance between high-performance cooling and low acoustic signatures.
- RGB Enthusiasts looking for addressable lighting that syncs seamlessly with major motherboard software.
- Workstation Users who require consistent airflow for long-duration rendering or computational tasks.
- Gamers wanting to maintain low internal temperatures during intensive overclocking sessions.
- Minimalist Designers who appreciate the sleek, black PBT construction and integrated cable management.
Detailed specifications:
- Dimensions: 120 x 120 x 25 mm (AN120) / 140 x 140 x 25 mm (AN140).
- Speed Range: 900 - 2200 RPM (AN120) / 900 - 1800 RPM (AN140) via PWM control.
- Airflow Performance: Up to 60.1 CFM (AN120) and 88.89 CFM (AN140).
- Static Pressure: 2.27 mm H2O (AN120) and 2.18 mm H2O (AN140).
- Noise Level: Rated at a quiet 20.5 dB(A) for the AN120 and 24.5 dB(A) for the AN140.
- Bearing Type: Long Lifespan Sleeve Bearing with over 36,000 hours MTBF.
Installing the Neptune AN series reveals InWin's attention to detail. The fans utilize a "smile curve" performance profile, meaning they maintain high efficiency even at lower RPMs. During testing, the integrated fan blade design effectively channeled air in a focused vortex, which is particularly beneficial when pushing air through dense radiator fins or restrictive mesh panels. The ARGB lighting is vibrant yet diffused, avoiding the "hot spot" look common in cheaper alternatives.
Compared to standard case fans, the Neptune AN series stands out due to its specific winglet design on the fan blades, which reduces air bypass and noise. While many high-RPM fans sacrifice acoustics for raw power, the AN120 manages to hit 2200 RPM while staying significantly quieter than competitors in the same bracket. The inclusion of a 3-pack bundle provides better value than purchasing individual units, especially for full-tower builds requiring synchronized intake and exhaust.
Q&A:
- How do I control the ARGB lighting on the InWin Neptune fans? The fans feature a standard 3-pin 5V ARGB connector compatible with ASUS Aura Sync, MSI Mystic Light, and Gigabyte RGB Fusion.
- Can these fans be used on liquid cooling radiators? Yes, the high static pressure (up to 2.27 mm H2O) makes them excellent choices for both AIO and custom loop radiators.
- What is the benefit of the integrated fan blade design? The one-piece design prevents air leakage between the blade and the frame, resulting in a more concentrated airflow and reduced vibration.
- Do these fans support daisy-chaining? The Neptune AN series uses a direct-wire connection system designed for easy cable management across multiple fan headers.
- What is the warranty period for the Neptune AN series? InWin provides a 3-year limited warranty, covering manufacturing defects and performance issues.
