MarbleShell series computer cases- MS31 and MS21, are designed for a better airflow at a lower noise level by integrating a marble-cut mesh front panel and 4 x PWM 120mm ARGB fans pre-installed. The MS31 model can accommodate up to 11 fans and 420 AIO in a 38mm radiator or 3 x 140mm fans in the front panel, while the MS21 model can accommodate up to 8 fans and 360 AIO in a 38mm radiator or 2 x 140mm fans in the front panel.HEAT VANQUISHED, PERFORMANCE UNLEASHEDThe MarbleShell MS31 is designed for better airflow with the optimized marble-cutting design mesh front panel and four pre-installed 120mm ARGB PWM fans. Supporting up to 420 AIO in 38mm thickness and 11 fans.BALANCE BETWEEN COOLING AND FUNCTIONALTYOptimized airflow with mesh panel and pre-installed ARGB PWM fan offers a better cooling performance.DELICATE MARBLE-CUTTING MESH FRONT PANEL FOR MORE AIRFLOWAs the cooling demand getting higher, the marble-cutting design mesh front panel ensures more air to enter your system for better ventilation.PWM-CONTROLLED FANS IN STYLES4 pre-installed 120mm ARGB PWM fans provide a lower noise level during idle or light loads while ensuring improved energy efficiency and a longer lifespan.IN LINE WITH THE LASTEST TRENDSFollowing the latest common charging cable agreement from EU Parliament, the built-in USB 3.0 and USB 3.2 Type C on I/O panel forward a more flexible application and faster data transfer speeds.EXTENSIVE COMPATIBILITYThe upgraded compatibility is designed to fulfill all the users’ needs.DUST-FREE PROTECTION3 magnetic dust filters are equipped on top, side and front panels to prevent dust and debris from entering and damaging your system. A cleaner internal environment will also lead to better and more consistent airflow through your PC.EXTENSIVE COMPATIBILITYThe upgraded compatibility is designed to fulfill all the users’ needs.