Fan Noctua NF-A12x15 FLX — 120 mm thin 15 mm PC case fan, 12 V, 1850 RPM, 94.2 m³/h, 23.9 dB, 3-pin

The Noctua NF-A12x15 FLX is a 120x15mm slim cooling fan featuring advanced aerodynamic design elements such as Flow Acceleration Channels and Noctua's AAO frame. Its 15 mm profile is intended for space-restricted setups like low-profile CPU coolers and compact HTPC cases. The FLX variant includes Low-Noise Adaptors that enable three fixed speed settings for flexible balance between airflow and quiet operation.

Advantages

The fan combines a slim 15 mm form factor with aerodynamic enhancements for efficient airflow in tight spaces. It offers three selectable speed levels (1850 / 1400 / 950 rpm) via supplied adaptors, low vibration and smooth operation thanks to the SSO2 bearing, and is produced to Noctua's premium quality standards for durable, quiet performance.

Suitable for

• Low-profile CPU coolers
• HTPC and small-form-factor PC cases
• Situations requiring slim fans for tight clearances

Key specifications

• Size: 120 x 15 mm
• Model: NF-A12x15 FLX
• Speed settings (via Low-Noise Adaptors): 1850 / 1400 / 950 rpm
• Bearing: SSO2

How to use

Install the fan in the required orientation inside the case or on the cooler using the appropriate screws or mounting hardware. Connect the fan to a compatible 3- or 4-pin header on the motherboard or to a fan controller. Use the supplied Low-Noise Adaptors to select the desired fixed speed (1850, 1400 or 950 rpm) for greater airflow or reduced noise as needed.

Recommendations

For best results in space-constrained builds, ensure there is adequate clearance for the 15 mm thickness and verify airflow direction before final installation. Use the lower rpm adaptors for near-silent operation in living-room or HTPC environments and the higher setting when increased cooling performance is required.