This article covers RAIJINTEK ATREUS BT7 Black ミドルタワー PCケース E.
Overview
The RAIJINTEK ATREUS BT7 Black is a mid-tower PC case that comes with seven pre-installed 120mm Infinity Mirror ARGB PWM fans and a curved tempered glass side panel. It supports motherboards up to E-ATX and accommodates graphics cards up to 420mm in length, making it well-suited for high-end gaming builds. The CPU cooler clearance is 155mm, and the case is designed with high airflow in mind. The curved glass beautifully diffuses RGB lighting, giving the whole system a premium, eye-catching appearance.
Compatibility Guide
This case officially supports E-ATX, ATX, Micro-ATX, and Mini-ITX motherboards. The power supply is mounted at the bottom, accepting standard ATX PSUs. The 420mm GPU clearance means even the largest current-gen graphics cards will fit without issue. However, the CPU cooler height limit of 155mm rules out many large air coolers such as the Noctua NH-D15. A 240mm AIO liquid cooler is a good alternative. The PCI slots are rotatable, allowing either horizontal or vertical GPU installation for added visual flexibility.
Product Info
The RAIJINTEK ATREUS BT7 Black was released in late 2025 as a mid-range case. It is available on Japan for approximately ¥17,580, offering excellent value by including seven ARGB fans and a curved glass panel. The manufacturer provides a standard one-year warranty. Market positioning is solidly in the budget-to-mid tier gamer segment, emphasizing out-of-the-box lighting and compatibility with large components. View on
Best Use Cases
RGB‑focused gaming builds: The seven included Infinity Mirror fans and curved glass create a stunning light show. Perfect for users who want their PC to be the centerpiece of their desk. High‑end GPU installations: With 420mm of clearance, this case can house any flagship graphics card, including the GeForce RTX 4090. The rotatable PCI bracket also allows vertical mounting for better GPU display. * First‑time builders: Pre‑installed fans simplify the build process, and the spacious interior makes cable management and component installation straightforward. No need to purchase extra fans for a complete setup.
Things to Consider
The 155mm CPU cooler height restriction is a significant limitation if you prefer large air coolers. Most dual‑tower coolers will not fit. Water cooling up to 240mm is fine, but support for larger radiators (280mm/360mm) is not confirmed. The curved glass front panel may restrict airflow compared to mesh alternatives; you should ensure adequate intake from side or rear vents. Only the black color variant is available. While the case looks fantastic, users purely focused on maximum thermal performance should explore mesh-front cases. Also, the number of included storage drive mounts is not explicitly detailed, so check if your drive count meets requirements. ## Specifications | Item | Specification | |------|---------------| | Brand | RAIJINTEK | | Model | ATREUS BT7 | | Case Type | Mid Tower | | Supported Motherboards | E-ATX / ATX / Micro-ATX / Mini-ITX | | Color | Black | | Material | Curved Tempered Glass | | Weight | 7.8 kg | | Included Fans | 7x 120mm Infinity Mirror ARGB PWM | | Max GPU Length | 420 mm | | Max CPU Cooler Height | 155 mm | | PSU Mounting | Bottom | | PCI Slots | Rotatable (vertical/horizontal) | | Cooling Method | Air (fans included) |