Compact ATX cases are the perfect solution for those who crave the power of a full ATX motherboard without a towering case dominating their desk. In 2025, the market offers a stellar selection of compact ATX cases, blending sleek designs, efficient layouts, and excellent cooling potential.
Here’s a roundup of the best smallest ATX cases, complete with dimensions and volume in liters to help you pick the ideal fit for your SFF build.
Best Smallest ATX Cases in 2025: Quick Comparision
| Case | Dimensions – LxWxH (inches – Approx) | Volume (Liters – Approx) | Key Features | Price (Amazon) |
| JONSBO D41 MESH SC | 17.32 x 8.07 x 16.02 inches | 35.4L | High airflow, compact design | $158 – Buy Now |
| SSUPD Meshroom S Mini | 9.72 x 6.57 x 14.25 inch | 14.9L | Tool-less design, modular panels | $240 – Buy Now |
| Cooler Master QUBE 500 | 18.11 x 9.09 x 16.33 inches | 33L | Spacious interior, innovative layout | $90 – Buy Now |
| Fractal Design Meshify 2 Compact | 21.65 x 20.87 x 12.99 inches | 39.4L | Exceptional airflow, versatile design | $140 – Buy Now |
| Fractal Design North | 17.6 x 8.46 x 18.46 inches | 45 liters | Stylish wood accents, premium cooling | $162 – Buy Now |
| Lian Li O11 Mini | 17.52 x 10.71 x 17.56 inches | 38 liters | Dual-chamber layout, sleek design | $122 – Buy Now |
| SilverStone Technology SUGO 14 | 9.72 x 14.49 x 8.46 inches | 19.55L | Cube-like design, high modularity | $98 – Buy Now |
JONSBO D41 MESH SC
Quick Highlights
- Volume: 35.4L
- Dimensions: 17.32 x 8.07 x 16.02 inches
- Price: $158 – Buy Now
The JONSBO D41 MESH SC is an excellent choice for those seeking maximum airflow in a compact package. Its mesh front panel and optimized interior layout ensure efficient cooling for high-performance builds, making it perfect for gamers and enthusiasts. In case you’re wondering, it supports 360mm AIO at the top and a 240mm AIO at the bottom, offering optimal airflow inside the chassis.
This case supports GPUs up to 400mm, meaning that you can throw in the latest RTX 50 series GPUs without a worry. Moreover, it also supports CPU coolers up to 168mm, providing flexibility for top-tier components. Despite its small footprint, the D41 MESH SC is surprisingly builder-friendly, with removable filters and excellent cable management.
SSUPD Meshroom S
Quick Highlights
- Volume: 14.9L
- Dimensions: 9.72 x 6.57 x 14.25 inch
- Price: $240 – Buy Now
The SSUPD Meshroom S is a standout case for its compact size and flexibility. At just 14.9 liters, it’s one of the smallest ATX-compatible cases on the market, yet it supports full-sized GPUs and a variety of cooling options.
The tool-less design simplifies assembly and component swaps, while the modular panels allow for creative configurations. Its full mesh construction ensures optimal airflow, making it a top choice for heat-intensive setups.
Cooler Master QUBE 500
Quick Highlights
- Volume: 33L
- Dimensions: 18.11 x 9.09 x 16.33 inches
- Price: $90 – Buy Now
The Cooler Master QUBE 500 is perfect for builders who want a compact case without sacrificing hardware compatibility. Its 33-liter volume provides enough room for large GPUs, liquid cooling setups, and multiple storage devices.
The case’s removable panels and modular design give builders the freedom to customize the layout. Whether you’re aiming for a clean, minimalist look or a high-performance gaming rig, the QUBE 500 adapts effortlessly to your vision.
Fractal Design Meshify 2 Compact
Quick Highlights
- Volume: 39.4L
- Dimensions: 21.65 x 20.87 x 12.99 inches
- Price: $140 – Buy Now
The Fractal Design Meshify 2 Compact prioritizes functionality and performance. With its 39.4-liter volume, it offers room for GPUs up to 360mm and CPU coolers up to 169mm. Its airflow-optimized design includes a mesh front panel and multiple fan mounting options, ensuring efficient cooling for demanding components.
This case also excels in modularity. The storage system can be reconfigured or removed entirely, offering flexibility for liquid cooling setups or additional cable space. With support for radiators up to 360mm at the front and 240mm on the top side, the Meshify 2 Compact is ready for high-end builds.
Fractal Design North
Quick Highlights
- Volume: 45L
- Dimensions: 17.6 x 8.46 x 18.46 inches
- Price: $162 – Buy Now
The Fractal Design North combines aesthetic appeal with technical functionality. It features a wooden front panel for a unique, stylish look, while still providing excellent airflow through cleverly integrated mesh sections. Its 45-liter volume accommodates GPUs up to 355mm and CPU coolers up to 170mm.
Internally, the case supports multiple cooling configurations, including up to 360mm radiator at the front on the case. The included cable management system ensures a tidy build, while the high-quality materials used throughout offer both durability and elegance.
Lian Li O11 Mini
Quick Highlights
- Volume: 38L
- Dimensions: 17.52 x 10.71 x 17.56 inches
- Price: $122 – Buy Now
The Lian Li O11 Mini is a dual-chamber case designed for builders who prioritize clean layouts and high-performance cooling. With a 38-liter capacity, it supports GPUs up to 362mm and radiators up to 360mm, making it a great choice for both air and liquid-cooled setups.
The dual-chamber design separates the PSU and cables from the main components, ensuring a clean, unobstructed build. The tempered glass side panel showcases your hardware, while multiple fan and radiator mount options provide excellent cooling flexibility.
SilverStone Technology SUGO 14
Quick Highlights
- Volume: 19.55L
- Dimensions: 9.72 x 14.49 x 8.46 inches
- Price: $98 – Buy Now
The SilverStone SUGO 14 offers a unique cube-like form factor with impressive hardware support for its 19.55-liter volume. It accommodates GPUs up to 330mm, full-size ATX PSUs, and up to 240mm radiators, making it highly versatile for compact builds.
Its modular design allows for easy panel removal and reconfiguration, giving builders the flexibility to optimize for cooling or storage. Despite its small footprint, the SUGO 14 doesn’t compromise on compatibility, making it ideal for compact workstations or gaming PCs.
Conclusion
Choosing the best small ATX case in 2025 comes down to finding the right balance of size, airflow, and expandability. The Fractal Design Meshify 2 Compact and Lian Li O11 Mini offer excellent airflow and support for high-performance hardware.
For modularity and flexible builds, the SSUPD Meshroom S and SilverStone SUGO 14 stand out. Meanwhile, the JONSBO D41 MESH SC and Cooler Master QUBE 500 shine in terms of cooling and space efficiency.
No matter your needs, these compact cases provide the perfect foundation for powerful, space-saving setups. Happy building!
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