This 140mm case fan features a reverse blade orientation, specifically engineered for intake configurations such as side or bottom panel mounting within a PC enclosure. The unit operates across a speed range up to a maximum of 1300 RPM, providing maximum airflow rated at 51.4 CFM (87.3 m³/h). It is designed to maintain effective system cooling while producing a maximum noise output of 25.5 dB at its highest rotational speed. This configuration focuses on air movement efficiency required for specific system airflow patterns.Speed control is achieved through a 4-pin Pulse Width Modulation (PWM) connector, enabling the motherboard to dynamically regulate performance based on the thermal load. The fan utilizes a durable Rifle bearing, contributing to long-term reliability and stable rotational performance. Illumination is integrated via 20 multi-color addressable LEDs, requiring connection to a dedicated 5V 3-pin ARGB header for full functionality. The unit operates on a standard 12V system voltage, drawing a typical power consumption of 3.8 W.Key Features: Rifle bearing technology for operational stability. Reverse blade geometry optimized for case intake placement. Maximum static pressure rating of 1.1 mmH2O. Physical dimensions are 140 mm by 140 mm, with a 25 mm depth. Illumination sourced from 20 integrated addressable ARGB LEDs. Rated Mean Time To Failure (MTTF) of 60,000 hours. Mounting screws and necessary hardware included.