The Corsair Graphite 380T has a the Mini-ITX form factor. Mini-ITX is even smaller than Micro-ATX, allowing PC builders the opportunity to create a low-performance, but discreet and low-power system. Using the Mini-ITX standard, the case can house motherboards and power supplies with form factors Array. The dimensions of the case itself (LxWxH) are 393mm x 292mm x 356mm.

The Corsair Graphite 380T has two expansion slots, so there is very little room for extra components, which may be a deciding factor when planning on the longevity and build type of a PC system. Installation of hard drives into these drive bays is made all the more easier by screwless rails that allow tool-less mounting.

Made primarily of Steel, the Corsair Graphite 380T is built to be strong and well-ventilated. Steel cases are generally fairly cheap and sturdy, but also tend to be quite heavy. Whatever your case's material, it is important to keep a consistent airflow so that heat doesn't build up inside. It is therefore advised that you make use of the available built-in case fans and fan installation sections.