An optimized front panel delivers massive airflow to your system for maximum cooling. Route your major cables through a single channel, with a roomy 25mmof space behind the motherboard for all of your cables, making a clean-looking build easier than ever. Equipped with two CORSAIR 120mm AirGuide fans, utilizing anti-vortex vanesTo concentrate airflow and enhance cooling. Build it how you want today, with an easy upgrade path for tomorrow. A spacious interior fits up to 6x 120mm or 4x 140mm cooling fans, along with multiple radiators including a 360mm in front and 280mm in the roof. Compact yet efficient, the 4000D AIRFLOW has excellent potential for expansion without being cumbersome. Fan mounts feature wider cutouts, allowing fan placement customization and flexibility. Plenty of room for a roof radiator and fans without contacting your high-end memory modules. Fits up to 2x 2.5in SSDs and 2x 3.5in HDDs, with relocatable SSD trays that can be moved to the front PSU cover. 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. Show off your high-profile components and RGB lighting with an easy slide-on, slide-off attach method.