Fractal Design Define XL Cases, Black Pearl (FD-CA-DEF-XL-USB3-BL) Pre-fitted with dense noise absorbing material ModuVent System allows the user the option to have unrivaled silence or optimal airflow Removable and rotatable upper HDD bay to enhance cooling characteristics and accommodate extremely long graphics cards Supports up to 10 HDDs/SSDs Supports graphics card lengths up to 330mm up to 480mm with upper HDD cage removed Intelligent cable management system Convenient top I/O panel with support for 1 x USB 3.0, 2 x USB 2.0 and Audio I/O Fan Controller for 3 fans included