" PWM Controlled Speeds via iCUE LINK: Set precise fan speeds up to 2,100 RPM while providing up to 74.2 CFM airflow to your system. High Static Pressure: With 4.38mm-H2O of static pressure, the RX Series is great for pushing air through obstructions such as high-density radiators. Vivid RGB Lighting: Eight RGB LEDs display vivid lighting effects, with a window built into the frame to enable viewing of your lighting from the side. LINK Your Fans Together: The included iCUE LINK bridge connectors can connect your fans directly to each other, creating a seamless bank of fans all connected to the iCUE LINK System Hub with just a single cable. CORSAIR AirGuide Technology: Anti-vortex vanes direct airflow at your hottest components for concentrated cooling, pushing air in the direction you need when mounted to a radiator or heatsink."