11 Best Smallest ATX Cases For Compact PC Builds in 2024

Tired of your PC setup feeling like it’s doing the limbo dance between style and space? Say goodbye to the struggle because we’re about to unveil the perfect solution for your compact computing needs. Get ready to explore the world of the “Best Smallest ATX Cases” where power meets portability!

No more squeezing for space. Let’s dive into sleek, small, and seriously stylish PC builds. It’s time to upgrade your setup into a powerhouse without sacrificing space or style.

Excited for the journey? Let’s roll and discover the perfect fit for your compact computing dreams!

10 Best Smallest ATX Cases

1. Cooler Master MasterBox Q500L

Embark on a journey into the world of compact supremacy with the Cooler Master MasterBox Q500L. Defying size norms, this mini ITX case holds the distinction of being the smallest case for an ATX motherboard, making it an anomaly in the best possible way. Don’t let its discreet cube design fool you; the Q500L is a robust powerhouse designed for those who crave portability without compromising on performance.

Specifications:

• Measurements: 15.2 x 9.1 x 15 inches
• Radiator Support: 240mm
• GPU Length: 360mm
• Included Fans: (3) 2x 140mm, 1x 120mm
• Weights: 3.83 Kilograms

The Cooler Master MasterBox Q500L defies expectations, offering a unique blend of compactness and power. Priced affordably at $79.99, it’s a small wonder with a well-managed interior, providing space for radiators and various hardware configurations. The cube design, while discreet, houses a robust steel construction, making it an ideal choice for those seeking portability without sacrificing performance. However, the absence of a tempered glass option and the unappealing 3.5″ HD mount may deter some users. If you can look past these nuances, the Q500L stands tall as a portable rig champion.

2. Lian Li O11 Dynamic Mini

Embark on a captivating journey into the world of compact elegance with the Lian Li O11 Dynamic Mini. This small ATX case is not just a housing for your components; it’s a work of art. The Special Snow White Edition O11D Mini takes the renowned O11 Dynamic Mini-series to new heights, offering a space-saving form factor without compromising on style or performance.

Specifications:

Measurements: 16.54 x 10.61 x 14.96 inches
Radiator Support: 240mm
GPU Length: 300mm (11.8 inches)
Included Fans: None
Weights: 10.9 Kilograms

The Lian Li O11 Dynamic Mini Snow White edition emerges as a top-tier Mini Tower, delivering an exceptional canvas for a clean, white PC build. It’s a perfect marriage of aesthetics and a compact foundation, making it the smallest standard ATX case that doesn’t compromise on looks. However, it does come with a few caveats, such as the absence of compatibility for standard ATX power supplies and the lack of included fans. Despite these considerations, the O11D Mini SW stands as a clear winner for those who prioritize both aesthetics and powerful hardware in a compact form factor.

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3. Phanteks Eclipse P300A Mesh Edition

Dive into the realm of budget-friendly brilliance with the Phanteks Eclipse P300A Mesh Edition. This compact ATX case doesn’t just save you a few bucks; it offers an impressive combination of build quality and airflow, making it a wise choice for those looking to maximize value without compromising on performance.

Specifications:

Measurements: 40cm x 45 cm x 20 cm / 16” x 18” x 8”
Interior Volume: 36.4 liters
Internal 3.5” Drive Slots: 2
Internal 2.5” Drive Slots: 2
External 5.25” Drive Slots: 2
I/O Connections: USB 3.0 x2, 3.5mm audio/mic
Rear Expansion Slots: 7
Case Fans: 120mm x3
Max GPU Length: 35.5 cm / 13.98”
Max Liquid Cooling Radiator Size: 240mm x1

The Phanteks Eclipse P300A Mesh Edition stands as a beacon of affordability and performance. With a sleek exterior and an interior designed for efficient cooling, this case proves that you don’t need to break the bank for a reliable and stylish build. While a few quirks may require some adjustments, its impressive airflow and build quality make it a top contender for budget-conscious builders aiming for a feature-packed ATX case.

4. NZXT H510

Step into the world of mid-range excellence with the NZXT H510. This sleek and stylish mid-tower compact ATX case is a testament to NZXT’s commitment to quality and aesthetics. Configurable for both liquid and air cooling, the H510 is a favorite among builders seeking a blend of performance, ease of use, and a modern, minimalist design.

Specifications:

Compatible form factors: ATX, Micro-ATX, Mini-ITX
Exterior dimensions: 46 cm x 42.8 cm x 21 cm / 18” x 16.85” x 8.25”
Interior volume: 41.35 liters
Internal 3.5” drive slots: 3
Internal 2.5” drive slots: 3
External 5.25” drive slots: 0
I/O connections: USB 3.1 Type A x1, USB 3.1 Type C x1. 3.5mm audio/mic
Rear expansion slots: 7
Case fans: 120mm x2, 140mm x1
Max CPU cooler height: 16.5cm / 6.5”
Max GPU length: 38 cm / 15” without radiator, 32.5 cm / 12.8” with radiator
Max liquid cooling radiator size: 140mm x2 (front), 120mm x1 (rear)

The NZXT H510 emerges as a mid-range marvel, offering a sleek and streamlined design coupled with versatile cooling options. Configurable for both liquid and air setups, it stands as a testament to NZXT’s commitment to providing quality, user-friendly cases. However, potential quality control issues, as reported in some Amazon reviews, highlight a consideration for prospective buyers. Despite this, the H510 remains an attractive choice for those who value a clean, minimalist aesthetic without compromising on functionality.

5. Thermaltake S200G TG: Gaming Glory with RGB Radiance

Immerse yourself in the world of gaming excellence with the Thermaltake S200G TG. This RGB-infused compact ATX case stands as a beacon for gaming enthusiasts, offering a harmonious blend of aesthetics, efficient cooling, and ample space for high-end components. Elevate your gaming rig to new heights with this feature-packed mid-tower, designed to deliver both performance and visual allure.

Specifications:

Measurements: 15.55 x 8.27 x 17.72 inches
Radiator Support: 360mm at front
GPU Length: 300mm
Included Fans: (3), All Inline at the front with ARGB
Weights: 6.4 Kilograms

The best part about the Thermaltake S200G TG? Well, let’s start with the airflow. The cooling setup shines, all thanks to the mesh front panel. The case itself includes support for three 120mm hydraulic bearing fans — ARGB variants, to be exact. You can fit up to six 140mm fans for heavy-duty gaming. There is support for two SSDs and two hard disk drives with 2.5” and 3.5” slots.

This case might not come with a 5.25 bay, but it surely makes up for it with two 3.5-inch HDD bays. Additionally, this $80 case can also accommodate high-end graphics cards as big as 325mm. There are seven full-fledged PCIe slots, which I tested with the RTX 3070 Ti graphics card. As for the designated PSU slot, I tested the Vetroo case with the RM750x module from Corsair. The front I/O panel is equipped with all the necessary ports — two Type-A and one Type-C.

This case brings forth customizable and optional RGB components. And at almost 41 ltr, the size of the internal chassis doesn’t look as restricted as some of the smallest cases for ATX motherboards.

6. Phanteks Eclipse P300A Mesh Edition

Dive into the realm of budget-friendly brilliance with the Phanteks Eclipse P300A Mesh Edition. This compact ATX case is engineered to deliver impressive airflow, making it a top choice for those seeking an affordable yet high-performing solution for their builds. With a focus on quality build and effective cooling, the P300A stands as a testament to Phanteks’ commitment to providing accessible excellence in the world of PC cases

Specifications:

Compatible form factors: ATX, Micro-ATX, Mini-ITX
Exterior dimensions: 40cm x 45cm x 20cm / 16” x 18” x 8”
Interior volume: 36.4 liters
Internal 3.5” drive slots: 2
Internal 2.5” drive slots: 2
External 5.25” drive slots: 2
I/O connections: USB 3.0 x2, 3.5mm audio/mic
Rear expansion slots: 7
Case fans: 120mm x3
Max GPU length: 35.5 cm / 13.98”
Max liquid cooling radiator size: 240mm x1

Barring a few space issues, the Phanteks P300A Mesh Edition delivers quite a bit of value in the ~$60-70 price segment. If you plan on building a fully-loaded high-end rig, you’ll find that heat may be a problem if you rely solely on air cooling. Although the case has a mesh front, its size makes larger intake fans impossible. Yes, the case boasts support for 280mm radiators, but there’s an issue. See the top right of the case? It’s blocked by the controller for the power button and external I/O. Because this case is already such a tight fit, you’ll find that most 280mm radiators will get blocked by that top portion. Stick to 240mm (2x120mm) radiators.

Some Amazon reviewers report general quality-control problems with the case, such as badly threaded screws that make tool-less assembly impossible, or at least, unpleasant. If you’re after a basic, compact ATX case for well under $100, the Phanteks P300 Mesh Edition is an excellent choice at its wallet-friendly price point.

7. Corsair iCUE 220T RGB Airflow

Step into the realm of smart and stylish gaming builds with the Corsair iCUE 220T RGB Airflow. This mid-tower ATX case is a manifestation of sleek aesthetics and robust cooling capabilities. With a focus on providing an immersive visual experience and efficient cooling, Corsair’s iCUE 220T stands as a testament to the brand’s commitment to delivering high-quality, feature-rich cases for modern gaming setups.

Specifications:

Measurements: 15.55 x 8.27 x 17.72 inches
Radiator Support: 360mm at front
GPU Length: 300mm
Included Fans: (3), All Inline at the front with ARGB
Weights: 6.4 Kilograms

A high airflow case is a basic requirement for gaming, and Corsair iCUE 220T RGB Airflow is all about building a modern gaming rig in a small size. This is one of the finest airflow computer cases in the mid-tower segment, targeting an audience that wants maximum airflow, even if it means a bit of fan noise. Corsair competes with Cooler Master in this segment, offering good quality and three removable dust filters at the bottom, roof, and front to keep your system clean for years after the build is complete. In addition to clean aesthetics, the front layout is a complete steel grill, similar to the rooftop, allowing direct air intake and displaying 3-inline (included) SP120 RGB Pro fans.

The only catch with this smart ATX case is that there isn’t enough room for wire management, making it challenging for novice builders. If you’re up for the challenge and can manage the cables effectively, the Corsair iCUE 220T RGB Airflow is a visual and functional delight for your gaming rig.

8. Fractal Design North

Dive into the epitome of sophistication and functionality with the Fractal Design North. This slim ATX case transcends conventional design norms, boasting a premium wooden front panel that elevates its aesthetic appeal. Crafted for enthusiasts and gamers seeking a perfect blend of style and performance, the North stands as a versatile choice, ready to accommodate high-end GPUs, including the formidable RTX 4080.

Specifications:

Measurements: 13.82 x 7.87 x 15.35 inches
Radiator Support: 240mm liquid cooling radiator
GPU Length: 275mm at max
Included Fans: (1), 120mm fan in the rear, RGB
Weights: 3.5 Kilograms

In summary, the Fractal Design North stands tall as a luxurious yet powerful contender in the realm of compact ATX cases. Its premium wooden front panel, versatile expansion slots, and efficient cooling capabilities make it a statement piece for those seeking a harmonious blend of aesthetics and performance. While it positions itself at a slightly higher price point, the North justifies the investment with its impeccable design, ample space for high-end components like the RTX 4080, and a commitment to elevating your PC build to new heights of elegance and functionality. Choose the Fractal Design North for a build that transcends the ordinary and reflects your commitment to a superior computing experience.

9. GAMDIAS AURA GC1

Introduction:
Unleash affordability without compromising on versatility with the GAMDIAS AURA GC1. Tailored for gaming enthusiasts, this budget-friendly ATX case seamlessly transitions into the realm of network-attached storage (NAS). Armed with multiple drive bays and a robust cooling setup, the AURA GC1 brings forth a unique combination of RGB-specific customization and practicality, catering to both passionate gamers and users exploring NAS configurations.

Specifications:

Measurements: (Not provided)
Radiator Support: Limited radiator options
GPU Length: (Not provided)
Included Fans: Three 120mm ARGB fans in the front, one at the back
Weights: (Not provided)

The GAMDIAS AURA GC1 positions itself as an attractive option for gamers on a budget, doubling as a viable choice for those exploring NAS setups. Pre-installed with three 120mm ARGB fans at the front and one at the back, this case prioritizes aesthetics while maintaining efficient airflow. The meshed front panel aids in optimal airflow, crucial for keeping components cool during extended gaming sessions or NAS operations.

The standout feature of the AURA GC1 lies in its drive bay configuration, offering two internal bays for 2.5″ SSDs and customizable units for 3.5″ HDDs or a combination of SSD and HDD cages. With seven PCIe slots and a plethora of I/O options, including USB 3.0 and 2.0 slots, the case ensures connectivity convenience for various peripherals.

While the case may have limited radiator options, and its I/O ports might lack the latest standards, the GAMDIAS AURA GC1 shines as an affordable and versatile solution. Ideal for budget-conscious gamers and users venturing into NAS setups, this case strikes a balance between RGB aesthetics, practical storage options, and efficient cable management. Choose the AURA GC1 for a cost-effective yet feature-rich addition to your gaming rig or storage-centric system.

10. Antec NX200M

Step into the future of compact supremacy with the Antec NX200M, a mini-tower ATX case that redefines portability without compromising on performance. Breaking free from the conventions of traditional airflow cases, Antec introduces a cleverly designed enclosure that caters to the needs of both novice builders and seasoned professionals. Let’s explore why the NX200M stands as a beacon of innovation in the ever-evolving landscape of PC cases.

Specifications:

Measurements: 13.82 x 7.87 x 15.35 inches
Radiator Support: 240mm liquid cooling radiator in front
GPU Length: 275mm at max
Included Fans: One 120mm fan in the rear, RGB
Weights: 3.5 Kilograms

The Antec NX200M emerges as a game-changer in the realm of mini-tower ATX cases, boasting a sleek design that defies size norms. With a focus on compatibility and expansion within confined spaces, this case accommodates a 240mm liquid cooling radiator in the front, ensuring optimal thermal performance for your components. Supporting motherboards up to M-ATX, the NX200M provides flexibility without compromising on its compact form factor.

While the case flaunts a capacity for expansion, the tight backroom may pose challenges for cable management, requiring careful consideration during the build process. Additionally, the absence of motherboard-regulated ARGB may impact RGB customization for users seeking synchronized lighting effects.

However, these nuances are outweighed by the NX200M’s innovative approach to mini-tower design. The inclusion of a standard one-year warranty adds a layer of assurance for users, emphasizing Antec’s commitment to quality and durability. Whether you’re a novice builder or a professional seeking a compact yet expandable solution, the Antec NX200M stands as a testament to Antec’s dedication to pushing the boundaries of what mini-tower ATX cases can achieve.

11. Jonsbo D41

Embark on a technological odyssey with the Jonsbo D41, an ATX case that redefines innovation and compactness. Featuring an unprecedented 8” LCD panel, this case stands out as a pioneer in the realm of PC enclosures, offering a multifaceted interface for monitoring custom animations, temperatures, and other critical details.

Specifications:

• Measurements: 17.52 x 8.39 x 17.17 inches
• Radiator Support: Up to 360mm
• GPU Length: Up to 330mm
• Included Fans: None
• Weight: 10.3 Kilograms

In conclusion, the Jonsbo D41 epitomizes the perfect blend of innovation, functionality, and compactness in the realm of ATX cases. Its cutting-edge features, including the 8” LCD panel and exceptional cooling capabilities, set it apart as a frontrunner for enthusiasts and professionals seeking a superior PC enclosure. Despite minor limitations, the D41 remains a standout choice for those prioritizing performance and aesthetics in their PC builds.

Why Choose a Small ATX Case: Unleashing the Power of Compactness

In the ever-evolving world of PC builds, the appeal of small ATX cases goes beyond just their size. Let’s explore why opting for a compact ATX case can significantly enhance your overall computing experience.

1. Space-Saving Benefits

Traditional PC setups often eat up valuable desk real estate. Small ATX cases redefine spatial dynamics, offering a compact solution that doesn’t compromise on performance. Say goodbye to bulky setups and hello to a more streamlined, efficient use of space.

2. Changing Styles and Aesthetics

The era of clunky, outdated PC cases is over. Small ATX cases bring a breath of fresh air to your setup, featuring sleek, modern designs that not only house powerful components but also elevate the overall aesthetics of your workspace. It’s about blending cutting-edge performance with contemporary style.

3. Ease of Portability

For those on the move or anyone looking to simplify the process of transporting their PC, small ATX cases offer a solution. These cases aren’t just compact; they’re designed with portability in mind. Experience the freedom to take your powerful rig wherever you go, without the hassle of dealing with a bulky setup.

Choosing a small ATX case is more than a practical decision; it’s a step towards a more efficient, stylish, and adaptable computing environment. Get ready to embrace the advantages of a compact PC build that effortlessly combines performance with a space-conscious design.

Conclusion

Embark on a journey into the world of compact supremacy with the best smallest ATX cases. From the innovative Cooler Master MasterBox Q500L to the sleek Thermaltake S200G TG and the versatile Antec NX200M, each case brings a unique blend of style, performance, and functionality to the table. Whether you prioritize portability, robust cooling, or customizable RGB components, this comprehensive guide has unveiled the top contenders in the realm of small ATX cases. Elevate your PC building experience with these exceptional choices, where size meets innovation. Ready to build your dream PC? Explore these cases today and discover the perfect compact companion for your rig.