Cooler Master QUBE 540 ATX Mid-Tower PC Case – Highly Customizable Modular Computer Chassis with Movable I/O Panel, Multi-Position PSU Mount, Tempered Glass Panel & Portable Handles – Moonstone

The Qube 540 redefines DIY PC building with its beginner-friendly flat-pack design and fully customizable interior. This compact ATX case removes the limits of traditional layouts, giving you the freedom to create your ideal internal setup. It also supports 3D-printed external accessories, allowing you to personalize both the look and functionality of your build.

• Flexible Orientation Design – Engineered to work seamlessly in both horizontal and vertical positions, with a reversible I/O panel and movable handles that let you customize layout, improve accessibility, and reposition the case effortlessly.
• GPU Compatibility – Offers up to 415 mm GPU clearance w/o the front fan for full-size graphic cards, including RTX 5090 and RX 9070 XT.
• Motherboard Compatibility – Supports ITX, ATX, and large E-ATX motherboards (up to 11" wide), all within a compact ATX form factor for maximum build flexibility.
• Mesh-Optimized Airflow– Full front mesh panel maximizes ventilation for superior cooling under load, paired with a pre-installed SickleFlow 120mm fan for improved airflow.
• USB Type-C & Full I/O Connectivity – The I/O panel includes 2× USB 3.2 Gen1 ports and a USB 3.2 Gen2 Type-C port, giving you fast and convenient front-access connectivity.