Pre-installed 4 PWM Fans- 120mm ARGB fans. Fan Speed: 1800 RPM - Max. Fan Airflow: 61.47-60.4 CFM - Max. Fan Air Pressure: 2.54-2.17 mm-H2O - Fan Noise Level: 26.5-30.8 dBA - Fan Bearing: Hydraulic bearing Display Platform Elegant ARGB Strip: Integrated 26-LED ARGB strip offers full spectrum color control and synchronization with motherboard software, enhancing both visibility and aesthetics. Toolless Panel Removal Back-connect Motherboard & Large GPU Support: Back-connect ATX and Micro-ATX motherboards, accommodating high-performance graphics cards up to 420mm in length.