The Alphacool Apex Stealth combines technical innovation with a timeless, elegant design. Featuring a solid die-cast zinc frame in black, integrated aRGB lighting, and globally unique decoupling technology, this fan represents the pinnacle of performance with minimal noise. Innovative Decoupling & Silent Performance The heart of the Apex Stealth is its patent-pending decoupling system. The impeller, motor, and suspension are completely isolated from the metal frame. A special damping system effectively absorbs vibrations before they can be transmitted to the chassis or radiator. Black Die-cast Zinc Frame: Maximum mechanical stability combined with a discreet, high-quality finish. Closed Impeller: A special frame prevents blade-tip fluttering at high speeds for optimized acoustics. 6-Pole Motor & Sleeve Bearing: Guarantees extreme smoothness and a long lifespan (100,000h MTBF). Powerful All-Rounder with aRGB Accents With a wide control range from 300 to 2000 RPM and Zero-RPM control, the Apex Stealth covers all scenarios from silent office use to high-end workstations. Daisy-Chain System: PWM and aRGB cables can be easily connected in series and hidden neatly within the frame. Efficient Cooling: 2.36 mmH2O static pressure makes this fan ideal for radiator use. Customizable Lighting: Addressable LEDs perfectly showcase the striking, curved frame design. Technical Specifications Dimensions / Weight: 140 x 140 x 25 mm / 350 g Speed: 200 - 2000 RPM (PWM) Pressure / Airflow: 2.36 mmH2O / 75.12 CFM Noise Level (max): 24.6 dB(A)