The iStarUSA D Storm D - 410 - DE15 System Cabinet is engineered for versatility and performance, supporting ATX, EATX, and Micro ATX motherboards. This 4U rack - mountable cabinet features a striking black and red design, constructed from durable zinc - coated steel. It offers 15 external 3.5" bays for extensive storage options and is equipped with two cooling fans to ensure optimal airflow and heat dissipation. With a total of 7 expansion slots, this cabinet is perfect for users looking to maximize their system's capabilities while keeping critical hardware secure and cool.