The VSK4000E-U3 is built with durable, SGCC steel, it's a tough case meant to last for several builds without fail. The VSK4000E-U3 also meets Thermally Advantaged Chassis (TAC) 2.0 guidelines and is upgraded with two USB 3.0 ports, nine drive bays, and seven expansion slots. Building a system starts with buying a case, then comes the parts that goes into it, which the cost can add up very quickly. The VSK4000E-U3 is here to provide the basic platform to start building your very own system. It?s humble design and practical functionality contains the fundamentals for a performance chassis. The VSK line is designed to be a stepping stone for those who want to upgrade their system later on. Each chassis devotedly serves their purpose as a cost-effective, unforgettable part of your system building experience. Built to last for several builds, the VSK4000E-U3 is constructed with durable steel, bottom and front side vents, two USB 3.0 ports and other essentials welcomed in any home or office PC. Constructed with durable, galvanized steel, the VSK4000E-U3 is a tough case meant to last for several builds without fail. Supporting up to standard ATX motherboards, the case has seven expansion slots for better customization and versatility, including space for a 12.5? graphics card. The VSK4000E is made to keep your components cool thanks to its bottom and front side vents, 120 mm rear fan, 120 mm front fan mount, rear water cooling support and CPU cutout while meeting Intel? Thermally Advantaged Chassis (TAC) 2.0 guidelines. Furthermore, VSK4000E-U3 is RoHS compliant and meets CE Certification for added reassurance. Lastly, the stylish black front panel is equipped with two USB 3.0 ports, Audio In/Out jacks and other essentials for your home or office needs.