ENDLESS MODULAR POSSIBILITIES The revolutionary FRAME Modular Case System redefines customisation. Want to upgrade the motherboard tray to billet aluminum? Want to replace your front I/O panel for more USB ports? Now you can. This case evolves with your needs, offering near limitless options for upgrades and changes. Fan Focused This steel multi-point mounting system provides unmatched flexibility for front and roof fan configurations. Easily slide the rail to mount fans up to 200mm (140mm in the roof) exactly where you need them, ensuring targeted airflow without limitations of fixed mounting points. Improved Cooling Engineered for maximum airflow and minimal resistance, the new 3D Y-pattern steel front panel ensures a smooth, unobstructed path for cool air, enhancing overall cooling. Get in the Frame Ensure your build has excellent airflow with careful cable routing and support for the latest motherboards and graphics cards. Sag-Free Graphics Cards Every CORSAIR FRAME 4000D includes a GPU Anti-sag Stabilization Arm to keep your GPU steady, so you never have to worry about damaging your PCIe slot. Reverse-Connection Compatible Fully compatible with reverse-connector motherboards from Asus, MSI, and Gigabyte, allowing for unobstructed airflow and a super-clean build. Cable Shroud Keep unused and overly long cables out of sight with the cable shroud for a clean and organised interior. Wide Cooling Flexibility Customise your cooling setup with room for up to 12x 120mm fans, plus versatile radiator mounting options including up to dual 360mm radiators.