<h3> <br /> <span style="color:#0066cc;"><em><strong>Super-sized airflow</strong></em></span></h3> <p> <br /> The Dynamic X2 GP-18 is a powerful 180 mm fan that packs a mean punch in the air-flow department. Massive blades stout 38 mm thickness and a wide 300-1200 RPM range with PWM control allow the GP-18 to yield remarkably high airflow while remaining exceptionally quiet.<br /> &nbsp;</p> <ul> <li> Massive 180 x 38 mm fan that yields remarkably high airflow while remaining very quiet</li> <li> High-grade LLS bearing with 90000-hour MTTF delivers long-lasting dependability</li> <li> PWM support offers a wide 300-1200 RPM speed range for silent operation under lighter loads and maximum airflow during more demanding activity</li> <li> Optimized fan geometry balances airflow with extra emphasis on static pressure for great performance in any usage scenario</li> <li> Aerodynamic stator struts with embedded wiring helps reduce noise and turbulence</li> <li> Stator struts sit on a wide angle to the trailing edge of the blades resulting in a lower noise level and smoother noise profile</li> <li> Strategically placed notches near the fan hub on the trailing edge of the blades help to eliminate the humming noise produced when the blades pass stator struts</li> <li> Trip Wire technology introduces a micro-turbulent layer that helps to combat elements that negatively affect performance providing an overall more efficient and quieter fan environment</li> <li> Customized design contributes to a cool running and beautiful looking build</li> <li> Fits standard 180 mm fan mounts with 165 x 165 mm screw hole pattern</li> </ul>