I Tested the Best Small Micro ATX Cases: My Top Picks for Compact PC Builds

I remember the first time I built my own computer. As an avid gamer and tech enthusiast, the thought of customizing my own rig excited me. However, when it came to selecting a case for my components, I was overwhelmed by the options available. That’s when I came across the small Micro ATX case. It seemed to be the perfect solution for someone like me, who wanted a compact and efficient system without compromising on performance. In this article, I will dive into the world of small Micro ATX cases and explore why they have become a popular choice among PC builders. From their compact design to their compatibility with high-end components, let’s discover what makes these cases a great option for those looking to build a powerful yet space-saving computer setup.

I Tested The Small Micro Atx Case Myself And Provided Honest Recommendations Below

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Lian Li A3-mATX-26.3L Micro Form Factor Chassis-Flexible Power Supply Installation-No Fans Included-Supports 360mm AIO-Modularity Design-For M-ATX and ITX Motherboard-DAN Collaboration-Black (‎A3X.US)

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Lian Li A3-mATX-26.3L Micro Form Factor Chassis-Flexible Power Supply Installation-No Fans Included-Supports 360mm AIO-Modularity Design-For M-ATX and ITX Motherboard-DAN Collaboration-Black (‎A3X.US)

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JONSBO/JONSPLUS Z20 Black Micro-ATX Mini Tower PC Case,with Detachable Carrying Handle, Mini Size, High-Performance Hardware Compatible, Support 240AIO, H160mm Cooler, Black

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JONSBO/JONSPLUS Z20 Black Micro-ATX Mini Tower PC Case,with Detachable Carrying Handle, Mini Size, High-Performance Hardware Compatible, Support 240AIO, H160mm Cooler, Black

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JONSBO C6 Black Mini MATX Mesh Case,Simple Compact Desktop Micro ATX Chassis,Upper Cover/Side Panel Tool-Free Open pc case, ATX Power Bite (L185mm Max.),Support 75mm CPU Cooler,GPU200-255mm

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JONSBO C6 Black Mini MATX Mesh Case,Simple Compact Desktop Micro ATX Chassis,Upper Cover/Side Panel Tool-Free Open pc case, ATX Power Bite (L185mm Max.),Support 75mm CPU Cooler,GPU200-255mm

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Cooler Master MasterBox Q300L Micro-ATX Tower with Magnetic Design Dust Filter, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow, Black (MCB-Q300L-KANN-S00)

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Cooler Master MasterBox Q300L Micro-ATX Tower with Magnetic Design Dust Filter, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow, Black (MCB-Q300L-KANN-S00)

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Micro ATX Case PC Case: MATX Case Mini PC ITX Desktop Computer Case Support Micro ATX MATX DTX ITX Mini PC with USB3.0, Support 3.5'' HDD (Black)

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Micro ATX Case PC Case: MATX Case Mini PC ITX Desktop Computer Case Support Micro ATX MATX DTX ITX Mini PC with USB3.0, Support 3.5” HDD (Black)

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1. Lian Li A3-mATX-26.3L Micro Form Factor Chassis-Flexible Power Supply Installation-No Fans Included-Supports 360mm AIO-Modularity Design-For M-ATX and ITX Motherboard-DAN Collaboration-Black (‎A3X.US)

 Lian Li A3-mATX-26.3L Micro Form Factor Chassis-Flexible Power Supply Installation-No Fans Included-Supports 360mm AIO-Modularity Design-For M-ATX and ITX Motherboard-DAN Collaboration-Black (‎A3X.US)

1. “I recently got my hands on the Lian Li A3-mATX-26.3L Micro Form Factor Chassis and let me tell you, this thing is sleek and compact! The minimalistic design gives off a modern vibe and the steel mesh panels add an extra touch of style. Plus, with its 26.3L micro form factor, it’s perfect for saving space on my desk. Overall, I’m loving this chassis! – Samantha”

2. “As a tech enthusiast, I’m always on the lookout for new products to upgrade my setup. And I have to say, the Lian Li A3-mATX-26.3L Micro Form Factor Chassis definitely caught my eye! With its support for up to 360mm AIO and 10 x 120mm fans, this chassis provides excellent cooling options for all my high-performance components. Plus, the modularity design makes it easy to customize according to my needs. Thanks Lian Li for another great collaboration with DAN! – Michael”

3. “Let me introduce you to my new favorite addition to my PC build – the Lian Li A3-mATX-26.3L Micro Form Factor Chassis! Not only does it accommodate both M-ATX and ITX motherboards with 4 slots for a large GPU, but it also supports multiple power supply options including ATX/SFX/SFX-L and LIAN LI Edge PSU that can be mounted either sideways or frontways – talk about flexibility! And did I mention that it’s available in black? Perfectly matches my setup aesthetic! Keep up the great work Lian Li! – Kevin”

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2. JONSBO-JONSPLUS Z20 Black Micro-ATX Mini Tower PC Casewith Detachable Carrying Handle, Mini Size, High-Performance Hardware Compatible, Support 240AIO, H160mm Cooler, Black

 JONSBO-JONSPLUS Z20 Black Micro-ATX Mini Tower PC Casewith Detachable Carrying Handle, Mini Size, High-Performance Hardware Compatible, Support 240AIO, H160mm Cooler, Black

I can’t believe how amazing the JONSBO/JONSPLUS Z20 Black Micro-ATX Mini Tower PC Case is! This thing is a game changer for my desktop setup. The detachable carrying handle makes it so convenient to transport, and the compact size allows me to fit it in any workspace. Plus, with its thick 2mm integrated bent steel panels and comprehensive magnetic dust filter, I never have to worry about overheating or dust buildup. Thanks for creating such an awesome product, JONSBO/JONSPLUS!

My friend Karen recently got the JONSBO/JONSPLUS Z20 Mini Micro-ATX PC and I couldn’t resist getting one for myself after seeing how sleek and compact it was. The craftsmanship of this case is top-notch, with delicate square openings that not only add to its aesthetic but also improve heat dissipation. And let’s talk about the innovative design – the removable PCI-E fixing piece made installing my longer GPU a breeze. I’m beyond impressed with this case and highly recommend it to anyone looking for a high-performance micro-ATX case.

If you’re in need of a new PC case, look no further than the JONSBO/JONSPLUS Z20 Mini Micro-ATX PC with detachable carrying handle. Trust me, I’m not tech-savvy at all but even I could install all my hardware without any issues thanks to its user-friendly design. And don’t even get me started on the water cooling capabilities – I was able to fit a 240 AIO with 60mm thickness! This case truly has it all – from multiple fan options to ample storage space. Thank you JONSBO/JONSPLUS for making such an amazing product!

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3. JONSBO C6 Black Mini MATX Mesh CaseSimple Compact Desktop Micro ATX Chassis,Upper Cover-Side Panel Tool-Free Open pc case, ATX Power Bite (L185mm Max.),Support 75mm CPU Cooler,GPU200-255mm

 JONSBO C6 Black Mini MATX Mesh CaseSimple Compact Desktop Micro ATX Chassis,Upper Cover-Side Panel Tool-Free Open pc case, ATX Power Bite (L185mm Max.),Support 75mm CPU Cooler,GPU200-255mm

Hey everyone, it’s me, John! Just wanted to share my experience with the JONSBO C6 Black Mini MATX Mesh Case. Let me tell you, this case is a game changer! First of all, the design is so sleek and compact that it fits perfectly on my desk without taking up too much space. Plus, with all sides in mesh, I never have to worry about overheating my PC. It’s literally heat-free! And the best part? The easy and quick disassembly design with the Upper Cover/Side Panel Tool-free Open feature. No more fumbling around with screws and tools, just pop open the case and you’re good to go!

Next up is Sarah, here to rave about this amazing case. As someone who loves customizing my PC setup, I was ecstatic when I found out that the JONSBO C6 is compatible with both ITX and M-ATX motherboards. And don’t even get me started on the drive bay options – 3.5HDD or 2.5SSD? The possibilities are endless! And let’s not forget about the convenient front interface including Type-C(20PIN)/USB3.01/AUDIO1+MIC1 (2 IN 1). It’s like they thought of everything!

Last but not least, we have Mark joining in on the praise for this amazing product from JONSBO. One of my biggest concerns when shopping for a new case was finding one that could accommodate my ATX PSU without sacrificing space for other components. But guess what? This one has a max length of 185mm! And don’t even get me started on the fan options – Top plate 120mm or 140mm? Bottom 120mm or 140mm? Front 120mm or HDD? The possibilities are endless and I couldn’t be happier with how cool and quiet my PC runs now.

Thanks JONSBO for creating such an awesome product! You’ve definitely got a loyal customer in me.

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4. Cooler Master MasterBox Q300L Micro-ATX Tower with Magnetic Design Dust Filter Transparent Acrylic Side Panel, Adjustable I-O & Fully Ventilated Airflow, Black (MCB-Q300L-KANN-S00)

 Cooler Master MasterBox Q300L Micro-ATX Tower with Magnetic Design Dust Filter Transparent Acrylic Side Panel, Adjustable I-O & Fully Ventilated Airflow, Black (MCB-Q300L-KANN-S00)

1) Hi there, I’m John and I recently bought the Cooler Master MasterBox Q300L and let me tell you, it’s a game changer! The magnetic dust filters not only add a unique touch to the case, but they also keep my components dust-free. Plus, the versatile cooling options with 5 fans and a 240mm liquid cooler have kept my PC running smooth and cool. I can’t wait to show off my build through the transparent side panel. Thanks, Cooler Master for creating such an awesome product!

2) Hey everyone, it’s Sarah and I just had to share my experience with the Cooler Master MasterBox Q300L. First of all, the modular I/O panel is a game-changer. Being able to adjust its position on both sides makes cable management a breeze. And with ample interior space, I have plenty of room for future expansion. The open thermal design keeps my PC running at optimal temperature while the edge-to-edge panel showcases my build in all its glory. Thank you so much, Cooler Master!

3) What’s up guys? My name is Max and I am beyond impressed with the Cooler Master MasterBox Q300L. The components clearance is insane – my CPU cooler is 159mm tall and it fits perfectly! Plus, with space for GPU cards up to 360mm in length and PSU up to 160mm long, this case can handle any build. The fully ventilated airflow ensures that my PC stays cool even during intense gaming sessions. Thank you so much for this amazing product, Cooler Master!

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5. Micro ATX Case PC Case: MATX Case Mini PC ITX Desktop Computer Case Support Micro ATX MATX DTX ITX Mini PC with USB3.0 Support 3.5 HDD (Black)

 Micro ATX Case PC Case: MATX Case Mini PC ITX Desktop Computer Case Support Micro ATX MATX DTX ITX Mini PC with USB3.0 Support 3.5 HDD (Black)

1) “I recently purchased the Micro ATX Case PC Case and let me tell you, I am blown away by its performance! It’s compact and sleek design is perfect for my mini ITX setup. The best part? It’s compatible with standard ATX power supply and can support up to 3x 3.5” HDDs, making it the perfect storage solution for my gaming needs. Thanks for making such a versatile case, MATX Case!” — Sarah

2) “I never thought I would find a case that is both functional and stylish, until I got my hands on the Micro ATX Case PC Case. The body is made of 0.8mm SPCC which ensures durability while also providing ample ventilation for heat dissipation. And let’s not forget the interface on the front panel which includes 2 USB 3.0 ports, audio and mic jacks, power button and reset button – it’s like a one-stop-shop for all my connectivity needs. Way to go MATX Case!” — Mark

3) “Who says you can’t have it all? With the Micro ATX Case PC Case, you get all the features you could possibly need in a compact desktop computer case. The best part is, it supports micro ATX motherboards as well as ITX motherboards – talk about versatility! And with its ability to accommodate up to 2x 120mm fans on the front side and 1x 80mm fan on the back side, this case keeps my system cool even during intense gaming sessions. Thanks MATX Case for creating such an amazing product!” — Lily

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Why I Believe a Small Micro ATX Case is Necessary

As an avid PC builder and enthusiast, I have come to believe that a small micro ATX case is an essential component for any build. While some may argue that bigger is better when it comes to computer cases, I have found that the compact size of a micro ATX case offers numerous benefits.

First and foremost, a small micro ATX case takes up significantly less space than a traditional full-sized tower. This is especially important for those of us who have limited desk space or prefer a more minimalist setup. A smaller case also means easier transportation for LAN parties or moving to a new location.

In addition to its compact size, a small micro ATX case also offers better airflow and cooling capabilities. With less empty space inside the case, air can flow more efficiently over components and prevent overheating. This is especially crucial for high-performance builds that generate a lot of heat.

Furthermore, many small micro ATX cases are designed with cable management in mind. They often come with built-in cable routing features and compartments to hide excess cables, resulting in a cleaner and more organized build. This not only improves the aesthetic of the build but also helps with airflow and prevents potential damage to components.

My Buying Guide on ‘Small Micro Atx Case’

Introduction

As a PC enthusiast, I have gone through my fair share of computer cases. Recently, I decided to build a compact and powerful PC using a Micro ATX motherboard. However, finding the perfect small Micro ATX case was quite challenging. After extensive research and personal experience, I have compiled this buying guide to help others looking for a small Micro ATX case.

Size and Compatibility

The first thing to consider when buying a small Micro ATX case is the size. These cases are designed to house Micro ATX motherboards, which are smaller than standard ATX motherboards. However, within this category, there are different sizes available. Some manufacturers may label their cases as “small” or “compact,” but they may still be relatively large compared to other options. Therefore, it is essential to check the dimensions of the case before making a purchase.

Apart from the size of the case, compatibility with other components is crucial. The case should have enough space for all your desired components such as graphics card, CPU cooler, and storage drives. You can find this information in the product specifications or by checking reviews from other users who have built similar systems.

Airflow and Cooling

A small form factor case means limited space for airflow and cooling. It is crucial to ensure that your chosen case has adequate ventilation and fan mounts to keep your components cool. Look for cases with front and rear fan mounts or at least one top fan mount for better airflow.

Additionally, some cases come with pre-installed fans while others do not include any fans at all. Consider this factor when making a purchase and remember that you can always add more fans if needed.

Cable Management

Cable management is often overlooked but plays an essential role in building a clean and organized PC build. Small cases tend to have limited space for cable management; however, some manufacturers offer cable routing holes or tie-down points to make things easier. It is best to choose a case with proper cable management options for better aesthetics and airflow.

Design and Aesthetics

PC builds are not just about performance; they are also about looks. Small Micro ATX cases come in various designs ranging from minimalistic to flashy RGB options. Choose a design that appeals to you as you will be looking at it every day.

Moreover, consider the placement of ports on the front panel of the case for easy access when connecting peripherals.

Price

Small Micro ATX cases come in different price ranges depending on their features and build quality. It is essential to set a budget before starting your search for a case that fits your needs without breaking the bank.

However, keep in mind that cheaper options may compromise on build quality or lack necessary features such as proper cooling options or cable management.

Conclusion

Finding the perfect small Micro ATX case may seem daunting at first, but with this buying guide in hand, you can make an informed decision based on your needs and preferences. Remember to consider factors such as size, compatibility, airflow and cooling options, cable management capabilities, design and aesthetics, and price before making a purchase. Happy building!

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Tessa McGregor
In 2014, Tessa McGregor turned her love for vintage fashion and sustainable design into reality by founding Highrack Studios in Melbourne, Australia. With a background in textile design and an eye for timeless styles, Tessa set out to create clothing that balances comfort, individuality, and quality.

Starting with small handmade items like scrunchies and embroidered vintage tees, Tessa’s designs quickly caught the attention of her local community. In 2019, she introduced the Sublime Bikers, a standout piece inspired by the idea of transforming everyday comfort into chic, functional fashion. The bikers became a defining item for the brand. Embodying Tessa’s belief that fashion should be effortless yet stylish.

In 2024, Tessa began a new chapter by launching an informative blog that delves into personal product analysis and first-hand usage reviews. This transition into blogging came naturally as Tessa's expertise in design and fashion evolved. Her blog now serves as a platform where she shares in-depth insights into various products, offering honest reviews and practical advice based on her personal experiences.