# Cooler Master MasterFan MF140 Halo² Fan, Duo-Ring ARGB Gen 2 LED Rings, 120mm 1600rpm Dynamic PWM, Enlarged Fan Blades, Hybrid Frame for PC Case, Liquid and Air Cooler (MFL-B4DN-16NP2-R2),Black

- Category: Case Cooler
- Brand: Cooler Master
- Model: MFL-B4DN-16NP2-R2
- Part number: MFL-B4DN-16NP2-R2
- Price (US): $30.99
- Price last checked: 2026-08-05
- Rating: 4.6/5 from 4698 Amazon reviews
- Warranty: 2 years
- Product page: https://buildmypc.net/component-details/case-cooler/cooler-master-mfl-b4dn-16np2-r2/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | Cooler Master |
| Model | MFL-B4DN-16NP2-R2 |
| FAN RPM | 1600 RPM |
| Noise Level | 27 dBA |
| Airflow | 59.51 CFM |

## Key Features

- Dual-Loop ARGB Rings: Enjoy 50% brighter illumination with more vibrant LED rings.
- Halo² 140 Fan: Redesigned hybrid frame optimal airflow and stability with optimized PWM blades, while simplifying the installation.
- Enlarged Fan Blades: Air Balance fan blades are 10% larger, boosting airflow and cooling performance.
- Dynamic PWM Fan: A PWM 4-pin header allows adjustable fan speeds from 0 to 1,600 RPM, to balance noise and airflow.
- Frosted Blade Design: The frosted blade enhances the dispersion of aRGB lighting, creating a vibrant and customizable luminous effect.

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