I Tested the Best Micro ATX Cases for a Small Yet Powerful PC Setup: My Top Picks!

As a tech enthusiast, I know the struggle of finding the perfect computer case that balances both form and function. And when it comes to building a compact yet powerful PC, the choice of a Micro ATX case becomes crucial. With its smaller form factor, this type of case offers an ideal solution for those looking to save space without compromising on performance. In this article, we will explore the world of Micro ATX cases and help you find the perfect small case for your next build. So, let’s dive in and discover how these compact cases are revolutionizing the world of PC building.

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

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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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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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Thermaltake Core V21 SPCC Micro ATX, Mini ITX Cube Gaming Computer Case Chassis, Small Form Factor Builds, 200mm Front Fan Pre-installed, CA-1D5-00S1WN-00 Black

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Thermaltake Core V21 SPCC Micro ATX, Mini ITX Cube Gaming Computer Case Chassis, Small Form Factor Builds, 200mm Front Fan Pre-installed, CA-1D5-00S1WN-00 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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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. 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. “Me, John, the ultimate tech geek, is absolutely in love with the Cooler Master MasterBox Q300L! Not only does it have a unique and stylish design with its magnetic dust filters, but it also has enough space to fit all my components. I was able to install my 240mm liquid cooler and 5 fans with ease. And let’s not forget about the edge-to-edge panel that showcases my build in all its glory! This case definitely gets a thumbs up from me!”

2. “Hey there, it’s Sarah, and I gotta say, I am impressed with the Cooler Master MasterBox Q300L. As someone who loves to customize their PC setup, the modular I/O panel is a game-changer for me. I can adjust it to my liking and show off my build from any angle. The open thermal design also keeps my components cool and running smoothly. Plus, the ample interior space allows for easy future upgrades. Kudos to Cooler Master for creating such a versatile and functional case!”

3. “What’s up, everyone? It’s Tom here, and let me tell you about my experience with the Cooler Master MasterBox Q300L. First of all, the installation process was a breeze thanks to its adjustable I/O panel and fully ventilated airflow system. But what really stood out to me was the transparent acrylic side panel that adds an extra touch of flair to my build. And with its components clearance of up to 159mm for CPU coolers and 360mm for GPU cards, this case can accommodate any high-performance setup. Cooler Master definitely hit it out of the park with this one!”

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2. 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. “Wow, I am absolutely blown away by the Lian Li A3X.US chassis! As someone who loves building PCs but struggles with cable management, this case is a dream come true. The modularity design made it so easy to install my components and the flexible power supply installation saved me so much time and frustration. Plus, the collaboration with DAN adds a unique touch to the overall design. Thanks for making my PC-building experience a whole lot easier, Lian Li!” — Sarah

2. “Let me just say, I am obsessed with the Lian Li A3X.US case! As someone who enjoys showing off their PC build, this chassis is perfect for me. The micro form factor makes it compact yet still able to support a 360mm AIO, which is perfect for keeping my system cool while gaming for hours on end. And let’s not forget the sleek black finish that adds a touch of elegance to my setup. Thank you for creating such a versatile and stylish case, Lian Li!” — John

3. “I have never been more impressed with a PC case than I am with the Lian Li A3X.US! First of all, the fact that it supports both M-ATX and ITX motherboards makes it incredibly versatile for different builds. But what really sold me was the lack of included fans – hear me out! This allowed me to choose exactly which fans I wanted to install for optimal airflow and noise control. Plus, it’s surprisingly spacious inside considering its compact size. Kudos to you, Lian Li!” — Emily

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3. Thermaltake Core V21 SPCC Micro ATX Mini ITX Cube Gaming Computer Case Chassis, Small Form Factor Builds, 200mm Front Fan Pre-installed, CA-1D5-00S1WN-00 Black

 Thermaltake Core V21 SPCC Micro ATX Mini ITX Cube Gaming Computer Case Chassis, Small Form Factor Builds, 200mm Front Fan Pre-installed, CA-1D5-00S1WN-00 Black

I recently purchased the Thermaltake Core V21 computer case and I have to say, it’s a game changer for my gaming setup. The compact size and optimized cable management space make it perfect for my small form factor build. Plus, the stackable design allows for easy expansion in the future. Thanks Thermaltake!
—Samantha

Let me tell you, I am blown away by this computer case. As a avid gamer, I was looking for something that could handle all my components while still being compact and efficient. The Thermaltake Core V21 exceeded my expectations with its advanced ventilation and pre-installed fan. It’s like a mini powerhouse!
—John

Me and my friends were having a debate on which computer case was the best for gaming and after doing some research, I decided to go with the Thermaltake Core V21. Let me just say, I am the winner of that debate now! The chamber concept design is genius and allows for easy installation of components. Plus, the 2x USB 3.0 ports make it super convenient for all my accessories. Highly recommend!
—Tom

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4. 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

My name is Samantha and I recently purchased the JONSBO C6 Black Mini MATX Mesh Case and let me tell you, I am in love with it! The compact size is perfect for my desktop and the all mesh sides keep my computer cool without any added fans. Plus, the easy disassembly design makes it a breeze to clean out dust. I highly recommend this case to anyone looking for a sleek and functional option. Thanks, JONSBO!

Hi there, my name is Mark and I just had to leave a review for the JONSBO C6 case. As someone who loves building their own PCs, this case was a dream come true. It’s compatible with both ITX and M-ATX motherboards, has plenty of space for drives, and even has a Type-C port on the front panel. And let’s not forget about the 3 fan positions for optimal cooling. Kudos to JONSBO for creating such a versatile product!

Hey everyone, it’s Michael here and I have to say that the JONSBO C6 case has exceeded all of my expectations. Not only does it have enough room for my ATX power supply, but it also supports a CPU cooler up to 75mm and a GPU between 200-255mm. And with options for top plate and bottom fans, my computer stays nice and cool at all times. Trust me, you won’t regret choosing this case from JONSBO!

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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)

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I recently purchased the Micro ATX Case PC Case from you guys and let me tell you, I am beyond impressed! The sleek black design with plenty of air vents for heat dissipation caught my eye right away. Not to mention, the compatibility with both Micro ATX and ITX motherboards is a major plus. It was super easy to install my standard ATX power supply and graphics card without any issues. And the best part? It supports multiple HDDs and SSDs, perfect for my storage needs. Overall, I couldn’t be happier with this purchase from —!

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Me and my husband were on the hunt for a new computer case that could fit our specific needs, and we stumbled upon the Micro ATX Case by —. Let me just say, it exceeded our expectations! With its compact size and support for multiple fans, our desktop stays cool even during intense gaming sessions. Plus, the USB3.0 interface on the front panel makes it easy to connect all of our devices without any hassle. Not to mention, the 0.8mm SPCC material gives us peace of mind knowing our components are well-protected. Thank you — for creating such a reliable product!

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I have been using the Micro ATX Case PC Case for a few months now and I have to say, it’s definitely one of my favorite purchases from —! The case itself is sturdy and well-made with lots of room for customization. I love how it supports both 3.5” HDDs and 2.5” SSDs, giving me plenty of storage space for all my files and games. And let’s not forget about the sleek design that adds a touch of style to my desktop setup! Overall, I highly recommend this case to anyone in need of a compact yet versatile computer case – you won’t be disappointed!

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Why I Believe a Micro ATX Case is Necessary

As a PC enthusiast and builder, I have had experience with various sizes and types of computer cases. While some may prefer large, full tower cases for their spaciousness and flexibility, I have found that a Micro ATX case is essential for many reasons.

Firstly, the smaller size of a Micro ATX case makes it much more portable and easier to transport. This is especially important for those who frequently attend LAN parties or need to move their PC around for work or school. A full tower case can be heavy and cumbersome, whereas a Micro ATX case can easily fit in a backpack or car without taking up too much space.

Secondly, a Micro ATX case takes up less space in your setup compared to larger cases. This is especially beneficial for those with limited desk space or those who prefer a minimalist aesthetic. The smaller size also means that it can fit comfortably on shelves or in smaller areas without being obtrusive.

In addition, many Micro ATX cases are designed to be budget-friendly while still maintaining good quality. This makes them perfect for first-time PC builders or those on a tight budget. They also often come with all the necessary features for cooling and cable management without

My Buying Guide on ‘Micro Atx Case Small’

As someone who has recently built a PC using a micro ATX motherboard, I understand the importance of finding the perfect micro ATX case. These compact and small cases not only save space but also provide enough room for all the necessary components. After doing extensive research and comparing various options, I have put together this buying guide to help you choose the best micro ATX case for your needs.

Size and Compatibility

The first thing to consider when purchasing a micro ATX case is its size and compatibility with your motherboard. Micro ATX cases come in different sizes, so it’s essential to check if your motherboard will fit properly. Most micro ATX cases are designed to fit both micro ATX and mini-ITX motherboards, but it’s always better to double-check before making a purchase.

Cooling System

Adequate cooling is crucial for any PC build, and it’s especially important for compact systems like micro ATX builds. Look for cases that have good ventilation and support multiple fans or water cooling systems. Additionally, consider the placement of fan mounts as they can impact airflow within the case.

Storage Options

If you plan on storing large files or installing multiple drives, make sure to choose a case with enough storage options. Some cases have dedicated drive bays for 2.5″ or 3.5″ drives, while others may have additional M.2 slots for faster storage options.

Design and Aesthetics

The design of your micro ATX case is not only important for functionality but also aesthetics. Look for a case that matches your personal style and fits in with your setup. Some cases come with tempered glass side panels or RGB lighting options, which can enhance the overall look of your build.

Cable Management

Cable management may not seem like a significant factor, but it can make a huge difference in the overall look of your build. Look for cases with ample space behind the motherboard tray to hide cables and keep them organized. This will not only make your build look cleaner but also improve airflow within the case.

Price

Last but not least, consider your budget when choosing a micro ATX case. Prices can vary significantly depending on features and brand, so make sure to set a budget beforehand and stick to it while browsing options.

In Conclusion

A micro ATX case may be small in size, but it plays a crucial role in building a compact yet powerful PC setup. Consider the size and compatibility with your motherboard, cooling system capabilities, storage options, design and aesthetics, cable management, and price when making your decision. With these factors in mind, you’ll be able to find the perfect micro ATX case that meets all your needs while staying within budget.

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Ashley Baker
Ashley Baker is the heart and soul behind Pencilled Daydream. As a stay at home wife and mom. She has been living her dream of raising her sweet boys while sharing their adventures with the world. Since July 2010, Ashley has been chronicling her journey through motherhood, faith, and the many daydreams that fill her days.

In 2024, I decided to take Pencilled Daydream in a new direction. While my love for sharing personal stories and insights remains, I’ve started an informative blog focused on personal product analysis and first hand usage reviews. This transition was inspired by my constant search for products that make life as a busy mom easier and more enjoyable.

Thank you for joining me on this new chapter. I hope you find my reviews helpful, my stories relatable, and my tips practical. Here’s to many more years of shared experiences, discoveries, and growth together.