The CORSAIR iCUE 4000X RGB is a distinctive and customizable tempered glass mid-tower ATX case with easy cable management and exceptional cooling, with three included CORSAIR AirGuide RGB fans. As beautiful to look at as it is easy to build in, the 4000X RGB tempered glass merges elegance with innovation - the perfect starting point for a world-class build.  Show off your components and RGB lighting, with dedicated front ventilation channels for ample airflow. Route your major cables through a single channel, with a roomy 25mm of space behind the motherboard for all of your cables, making a clean-looking build easier than ever. Fully control and synchronize the RGB lighting for up to six fans with the included iCUE Lighting Node CORE and CORSAIR iCUE software. With included vertical PCIe slots and a screw mount for a CORSAIR PCI-Express 3.0 extension cable (sold separately) you can show off your GPU and keep it secure at the same time.