The case specification Form Factor Mid-Tower Material Motherboard supporting ABS plastic, steel, and tempered glass EATX (12"x10.9") Extension of ATX Micro-ATX Mini-ITX DTX Mini-DTX Slots 8 and 2 (extra vertical) Four 2.5" Bays Inside; Four 2.5"/3.5" Bays The Bay 4 x 2.5" Bays Internal 3.5" Bays 4 x 2.5"/3.5" Combo Mounting Bay Fans Two x 200 mm pre-installed fans (front) Fans already installed (rear) 140 x 1 mm 120 mm, 140 mm, 240 mm, 280 mm, 360 mm, and 420 mm Radiator Support (Top) Front Cooling Support: 2 x 200 mm Support for Cooling (Top) 3 x 120 mm 3 x 140 mm Support for Cooling (Rear) 1 x 120 mm 1 x 140 mm Two USB 3.2 Gen1 and one UBS 3.2 Gen 2x2 Type I/O Interface