Built with durable, SGCC steel, the VSK4000B is a tough case meant to last for several builds without fail. The VSK4000B also meets Thermally Advantaged Chassis (TAC) 2.0 guidelines and is equipped with two USB 2.0 ports, nine drive bays, and seven expansion slots. SPECIFICATIONS:9 drive bays: - 3 x 5.25 external drive bays - 1 x external floppy drive bay - 5 x 3.5" internal HDD baysMotherboards: Standard ATX, microATX, Mini-ITX7 expansion slots Maximum graphics card size: 12.5 (318 mm)Cooling System: - 1 x 120 mm rear exhaust fan - 1 x 120 mm front intake fan (optional)Water cooling support: rear water cooling grommetsSturdy steel frame for durabilityFront I/O ports: - 2 x USB 2.0 - Audio In/OutUnit Dimensions: - 17.3 (H) x 7.3 (W) x 16.2 (D) - 440 mm (H) x 185 mm (W) x 412 mm (D)Net Weight: 11.0 lbs / 5.0 kgGross Weight: 13.2 lbs / 6.0 kg