Fractal Design Prisma AL-18 180mm ARGB PWM White Fan The Prisma AL-18 is a powerful 180 mm ARGB fan that packs a mean punch in the airflow department. Massive blades, stout 38 mm thickness, and wide 300-1200 RPM range with PWM control allow the AL-18 to yield remarkably high airflow while remaining exceptionally quiet. • Massive 180 x 38 mm RGB fan that yields remarkably high airflow while remaining very quiet • Twelve individually addressable hub-mounted RGB LEDs • Specially designed fan blades and outer ring produce an exceptionally uniform glow
