Endorfy Regnum 400 ARGB Mid-Tower Case - EY2A009

Endorfy Regnum 400 ARGB is a middle tower case aimed at mid-range and more serious gaming configurations where you want both airflow, space, and a clean look. It supports standard motherboard formats ATX, Micro ATX, and Mini ITX, giving you freedom in choosing a board. With tempered glass on the side panel, you can showcase your hardware and ARGB components effortlessly. The package includes 4 x 120 mm fans, so you have a solid foundation for decent airflow right from the first start.

What you get

Inside, there is enough space for long graphics cards – up to 370 mm, so you can comfortably plan for a thicker and longer GPU without worrying about it hitting the front panel. For the CPU cooler, you have up to 162 mm height, which covers most of the more serious air towers from the mainstream class. The case is also prepared for water cooling – you can install a radiator up to 360 mm in the front, up to 280 mm on top, and 120 mm at the back, allowing combinations like 240/280 mm AIO for CPU and additional fans for GPU airflow. With 2 x 3.5" and 2 x 2.5" slots, you have enough space for a larger HDD for storage plus several SSDs for systems and games. The separate lower compartment for the power supply, supporting PSU up to 296 mm, helps for cleaner cable management and better cooling of the main chamber.

• The case form factor is Middle Tower with support for ATX, Micro ATX, and Mini ITX motherboards for flexibility in platform choice.
• Included are 4 x 120 mm fans, so you have a ready basic airflow without needing to buy additional ones immediately.
• Support for long graphics cards up to 370 mm, allowing the use of serious gaming GPUs without compromising on size.
• Max. height for air cooler 162 mm, sufficient for mainstream high-profile towers for quieter and more efficient CPU cooling.
• Rich water cooling options: front up to 360 mm, top up to 280 mm, and back 120 mm radiator for flexible AIO configurations.
• A total of 2 x 3.5" and 2 x 2.5" slots, suitable for a combination of a large HDD for archiving and fast SSDs for system and games.
• Side panel made of tempered glass and bottom-mounted power supply up to 296 mm for a clean interior view and better airflow.
• Convenient front I/O with 2 x USB-A, plus separate 3.5 mm outputs for headphones and microphone for easy access to peripherals.

Who it is suitable for

This case is suitable for gaming and multimedia configurations from mid to high class, where you want good airflow, water or more serious air cooling, and enough space for a modern GPU. It also works for quieter builds with slower fans and large radiators. If you are aiming for an ultra-compact system or need 5.25" devices (optical drive, front bay controllers), this is not the best choice.

The most sensible aspect here is the combination of space for hardware, the ready set of four 120 mm fans, and support for large radiators, combined with tempered glass for a clean and tidy build.