The Helios Warrior has a the ATX form factor. ATX is the most ubiquitous of case standards, providing the largest array of compatible hardware on the market. Using the ATX standard, the case can house motherboards and power supplies with form factors ATX and Micro-ATX. The dimensions of the case itself (LxWxH) are 516mm x 210mm x 450mm.

The Helios Warrior has seven expansion slots, so there is plenty of room for extra components, which may be a deciding factor when planning on the longevity and build type of a PC system. The case has five 5.25" drive bays, which is more than enough to house various drives, particularly optical drives. With five 3.5" drive bays there is also plenty of extra HDD space as well. Installing a solid-state drive on this case would require a 3.5" adapter.

Made primarily of Plastic, the Helios Warrior is built to be lightweight, but strong enough to keep your components protected. Plastic cases generally have a thin metal layer to improve protection, and are also generally fairily cheap. 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.