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. PWM precision – PWM control with a wide 300-1200 RPM speed range ideal for radiators – Trip Wire technology introduces a micro-turbulent layer for enhanced blade efficiency – Aerodynamic stator struts with embedded wiring reduce noise and turbulence Manually Controllable – Adjust R1 RGB controller (sold separately) enables physical control of colors and effects – Fits standard 180 mm fan mounts with 165 x 165 mm screw hole pattern – Black sleeved power cables offer an extra touch of style Maximum compatibility Compatible with ASUS AURA, Gigabyte Fusion, MSI Mystic Light, ASRock Polychrome and Razer Chroma High-grade LLS bearing Long-Life Sleeve bearing with 90,000-hour MTTF delivers long-lasting dependability Smooth operation Integrated synthetic rubber corners nullify fan vibrations Chained connections Chain RGB cables to simplify wiring and run multiple fans or additional RGB devices from a single connector