10 Best Smallest Micro Atx Cases in 2022 – Reviews

This post was most recently updated on April 30th, 2022

Best Smallest Micro Atx Cases

Best Smallest Micro Atx Cases

Building your own PC requires a lot of important components like a Processor, monitor, Motherboard, Ram as well as a casing. A casing not only assembles your PC components but also protects and cools them. The standard ATX case was first introduced by Intel in the year 1995 which defines space for each component.

The smallest micro ATX case holds up to 6 hard drives and 240mm water cooling radiators which implies that you can run heavy games for hours and overclock while your PC remains cool and chilled. It consists of 120mm fans for further cooling of the hardware during heavy workload. The sleek design, strong build quality, and affordable price tag make it the best option casing.

The ATX refers to “Advanced Technology eXtended” which standardizes the hardware sequence of organization. It consists of advanced technology for temperature and power control, for this purpose, it instantly powers off the PC when it overheats. It can be controlled by updated network signals as the power system is maintained mainly by the motherboard.

However, selecting a single case in a diverse variety of mATX cases is confusing so we decided to review the best smallest micro ATX cases that will help you choose one easily. We have not only listed the best smallest micro ATX cases but also described their features and drawbacks. These are the honest reviews of our technical experts.

List of Best Smallest Micro Atx Cases

There are a total of ten (10) ATX cases discussed in this article that we think are the best smallest micro ATX cases. So without further due let’s officially start the articles.

1) Cooler Master Silencio S400

BEST SMALLEST MICRO ATX CASES

Top Features

  • Power: 350W
  • Ports: 2-USB 3.0, 1-Audio, SD card reader
  • Expansion Slots: 7
  • Dimensions: 8.27×16.46×16.06 inch
  • Weight: 7kg

Review

If you are more interested in silent cases then the best one for you is the Cooler Master Silencio S400 and the beneficial part of this case is that it supports both micro-ATX and mini-ITX motherboards.

An excellent feature of the Cooler Master Silencio S400 ATX case is that it consists of sound damping cushioning that benefits the whisper-quiet functioning. You also get top panel ventilation. Despite the variety of components it holds, the outer look of the case is very sleek and occupies a small space.

Additionally, it does not carry a side-panel window but the reversible front cover is the cherry on top. The Cooler Master Silencio S400 is capable of holding 6 hush entities besides the sleek design. Moreover, its radiator support is also of great use which you can set as two at the top panel, one at the rear panel, and four at the front panel this offers great support to the PC during a load of work and heavy games.

Coming to the storage, there are four slots available for HDD and SSD individually followed by a dedicated ODD. HDD can be moved whether to a radiator or PSU, therefore HDDis the most usable part of an ATX case. Although you do not need to buy each fan individually because the case comes with two 120mm Silencio fans.

The most uncommon factors of the Cooler Master Silencio S400 are the rubber padding of the case further complementing the noise-free functioning. Thus Cooler Master Silencio S400 is indeed one of the best smallest micro ATX cases.

It offers two USB 3.0 ports an audio/microphone jack and a slot for an SD card. The case is thin which makes it capable of fitting in small sleek places. I think it is one of the best smallest micro ATX cases.

Video Review

Pros

  • Reliable strong build quality
  • Reversible front panel
  • Include ODD slot
  • Comes with 2 Silencio fans

Cons

  • No Type-C ports included

Drawbacks 

  • Unreliable performance when the system heats up

2) Thermaltake Core V21

BEST SMALLEST MICRO ATX CASES

Top Features

  • Power: 750W
  • Ports: 2-USB 3.0, 1-Audio
  • Expansion Slots: 5
  • Dimensions: 13.2×12.6×16.7 inch
  • Weight: 6.5kg

Review

Thermaltake Core V21 belongs to the Core V series of cases while this particular case is compatible with both micro ATX and mini ITX motherboards thus making it the best option for raw performers.

This class-leading case is dual-orientation supported and includes a 200mm front panel, the panel maintains the thermal activity of the system. It accommodates up to 14 fans at the most depending on the unit size. Those interested in radiators can also fix a maximum of 8 radiators inside the case. So the cooling modules of the Thermaltake Core V21 are best for thermal performance specifically in heavy workloads.

Coming to storage, we see a total of six bays with three SSDs and three HDDs. When it comes to cooling, Thermaltake Core V21 includes both air and liquid cooling modules hence it is one of the best smallest micro ATX cases for futureproof setups. The availability of five expansion slots makes it highly compatible.

A 750W of voltage that can be boosted to 1500W is the best update for heavy gamers with access to two USB 2.0 ports and one audio output. One of the most impressive features of this ATX case is the concept of dividing the case into two chambers, the upper (for cooling) and the lower chamber (for storage and power supply).

The case is affordable, thin, lightweight, and durable thus I added it to the best smallest micro ATX cases. Once you get this Thermaltake Core V21 case you will surely be impressed by the cooling system and power supply which can be upgraded, as well.

Video Review

Pros

  • Splendid thermal performance
  • Chambered layout with durable casing

Cons

  • Tricky cable arrangement

Drawbacks 

  • Large for less-powerful PCs

3) Corsair Crystal 280X

BEST SMALLEST MICRO ATX CASES

Top Features

  • Power: 750W
  • Ports: 2-USB 2.0, 2-Audio
  • Expansion Slots: 4
  • Dimensions: 15.67×10.87×13.82 inch
  • Weight: 7.24kg

Review

Featuring the plastic, metal, and tempered glass cubic framework Corsair Crystal 280X is one of the best smallest micro ATX cases. The aesthetic chassis is finished with three-sided glass panels.

Firstly, the case is compatible with mini-ITX motherboards with a free space enough for various fans settings. The dual chamber (measuring 11.8 inches) of Corsair Crystal 280X for graphics cards is also very impressive. The case offers both air and liquid cooling modules for cooling so as long as your main concern is cooling, Corsair Crystal 280X is the best option.

Secondly, it ensures zero wire tangling for a clean internal system. There are a minimum of 5 internal bays for storage purposes, however, it consists of a dedicated storage compartment as well. The colorful 32 LED light array is largely noticeable. Yet another impressive feature is the Nod Pro Digital controller for personalization and design management purposes.

Thus I think Corsair Crystal 280X is one of the best smallest micro ATX cases that is affordable, thin, lightweight, updated, and powerful. It has all the qualities that cover a wide range of users including beginners and pro players.

Video Review

Pros

  • Comes with 6 fans and 5 storage bays
  • Dust filtration and Triple chambered glass panel
  •   It has dual-chamber layout

Cons

  • Omit Type-C ports

Drawbacks 

  • The thermal performance of the lens is not very impressive
  • It is heavy

4) Antec Performance Series P5

BEST SMALLEST MICRO ATX CASES

Top Features

  • Power: 350W
  • Ports: 2-USB 3.0, 1-Audio
  • Expansion Slots: 7
  • Dimensions: 7.7×15.6×18.7 inch
  • Weight: 5.3kg

Review

Well, if a budget-concerned person wants to buy an affordable ATX case yet build a powerful computing system then Antec Performance Series P5 is one of the best smallest micro ATX cases for you.

It gives space to the TFX-based power supply module which offers 350W power to the system. Additionally, it accommodates a 360mm graphics card along with the CPH coolers with a 120mm fan. The P5 is one of the space-centric ATX cases featuring ODD and HDD as well as SSD storage bays. It is known for its smallest size and sleek design thus I had to undoubtedly add this Antec Performance Series P5 to the best smallest micro ATX cases.

With the steel and plastic construction, it is the most decent case regarding structure. On the other hand, the net weight of the Antec Performance Series P5 is 5.3 kilograms. Now coming to the connections, the P5 ATX case comes with two USB 3.0 ports further accompanied by the 7 expansion slots.

Audio concerns will get both input and output jacks for their sound systems offering acoustic experience. Despite the missing cable management and side-panel windows, I think Antec P5 is one of the best smallest micro ATX cases. It offers a paper of 350 watts in a small compact body that can easily fit on your desk.

Pros

  • Consists of dust filters and temp-controlled fans
  • Various compatibility forms
  • 7 expansion slots

Cons

  • Heavyweight

Drawbacks 

  • No support for cable management

5) Musetex MESH MK7-W

BEST SMALLEST MICRO ATX CASES

Top Features

  • Power: 750W
  • Ports: 2-USB 3.0, 2-HD Audio
  • Expansion Slots: 7
  • Dimensions: 18×17×11 inch
  • Weight: 6.1kg

Review

Musetex MESH MK7-W is another one of the best smallest micro ATX cases that are often purchased by users due to its design and strong metal framework. Additionally, it is one of the few cases that include a tempered glass panel in the design.

Fortunately, Musetex MESH MK7-W is a stylish ATX case that includes a tempered glass side panel. The glass panel on the side of the case makes it durable and splendid yet the manufacturer steals the mind with its metal finishing of the framework. We can simply say that Musetex MESH MK7-W simply achieves brilliance in the layout.

An anti-dust metallic mesh protects the case from dust. The design is highly suitable for heavy games and workload as it has a cooling system that helps in penetration of the heat produced by the system. It is indeed one of the best smallest micro ATX cases that we recommend to you for your new PC setup or updating your older system.

With a noticeably large number of expansion slots and two USB 3.0 ports, it is good for connectivity and data transfer. I think it is the best smallest micro ATX case that will highly impress you with its compatibility and cooling.

Pros

  • Support powerful GPU and three SSD
  • Strong airflow
  • Creative design
  • Good dust management

Cons

  • Lack Type-C port

Drawbacks 

  • Poor performance with RTX 30-Series GPUs

6) Thermaltake Versa V150

BEST SMALLEST MICRO ATX CASES

Top Features

  • Power: 500W
  • Ports: 1-USB 3.0, 2-USB 2.0, 1-Audio
  • Expansion Slots: 4
  • Dimensions: 8.19×15.67×17.32 inch
  • Weight: 0.9kg

Review

Thermaltake Versa V150 is indeed one of the best smallest micro ATX cases for beginner-level gamers or enthusiastic mongers. It is sleek but affords large storage for heavy loads.

This particular ATX case has a fairly large size for storage, graphics card, and power setups. The case features two SSD and two HDDs further supported by four PCIe slots. For cooling purposes, the Thermaltake Versa V150 affords five (5) fans for effective ventilation and two liquid radiators.

But the ATX case already consists of 120mm fans at the front panel thus increasing the interest of gamers. On the other hand, it’s the budget that attracts people towards this Thermaltake Versa V150 ATX case that we think is one of the best smallest micro TAX cases.

Coming to the ports and connectivity, the Thermaltake Versa V150 ATX case comes with both the USB 3.0 and USB 2.0 ports. It also consists of HD audio hence enhancing the compatibility. The ventilation is exceptionally improved beside a large number of cable structures. The high-quality cable management of Thermaltake Versa V150 keeps it highly in demand. The acrylic glass window at the side of this particular case makes its overall appearance very enthusiastic.

Let’s leave all the features behind and check the price, well it is highly affordable that even an entry-level technology user can afford it. Thermaltake Versa V150 is one of the best smallest micro ATX  cases that we could find at a budget-friendly price.

Pros

  • Excellent chassis and ventilation
  • Basement shrouding
  • Adequate storage configuration

Cons

  • The power button is quite sensitive

Drawbacks 

  • Even after prevention dust amasses after long usage

7) Cooler Master MasterBox NR600

BEST SMALLEST MICRO ATX CASES

Top Features

  • Power: 550W
  • Ports: 2-USB 3.0, 1-Audio
  • Expansion Slots: 7
  • Dimensions: 21.67×21.26×11.02 inch
  • Weight: 6.67kg

Review

It is the most reliable and durable ATX case with a small structure and hard tempered side glass window. It is quite an affordable, diverse and extensive case for your new computer system.

Firstly, a cool small design allows the users to use a 410mm GPU and 160mm CPU cooler, moreover, the Cooler Master MasterBox NR600 gives access to the PS2 module. The design features a 120mm front cooling fan followed by the rear-aligned one. It contributes to the storage by giving space to 4 HDD and 5 SDD and one dedicated ODD slot.

On the other hand, if you get rid of the ODD, you can also add a water cooler radiator to the system. Being that said, I am also impressed by its 7 expansion slots. The slots make it very easy to build your system with sound cards, wireless cards, and other components that make the PC perfect.

Contributing to the connectivity of Cooler Master MasterBox NR600 are the two USB 3.0 ports and audio ports that can be further extended. In addition, it is a relatively lightweight and thin case that will fit perfectly on your desk. It is one of the best smallest micro ATX cases.

The cable management of Cooler Master MasterBox NR600 is certainly worth mentioning. The extraordinary cable management is its courtesy hence you will not face tangled wires of the components it will be rather in an assembled way. The Cooler Master MasterBox NR600 ATX case is affordable, thin, lightweight, small, and accommodative thus it is one of the best smallest micro ATX cases.

Pros

  • Affordable and stylish
  • Customizable setup
  • Good thermal activity

Cons

  • No Type-C port

Drawbacks 

  • Carry only one front fan
  • Heavy in weight

8) InWin 301

BEST SMALLEST MICRO ATX CASES

Top Features

  • Power: 750W
  • Ports: 2-USB Type-A, 1-USB Type-C, 2-Audio
  • Expansion Slots: 4
  • Dimensions: 14.3×7.4×14.9 inch
  • Weight: 6.5kg

Review

Featuring the best look, InWin 301 is one of the best smallest micro ATX cases for aesthetic mongers. It has achieved excellence in design with amazing features and quality.

The design consists of glass side panels, an amazingly beautiful front panel and an LED display. It is an intelligently designed case for gamers and design seekers for their PC. Moreover, the case is built with alloy and scratch protection. Besides the shockproof case, it also carries a rear-aligned dust filter to control the thermal activity of the system.

The cable management allows its users to place a variety of components inside the case without the concern of tangling the cables. It is one of the few ATX cases that include an additional graphics card holder which is certainly a plus point for this InWin 301 case.

The case is compatible with both the micro-ATX and mini-ITX motherboards. It also allows the users to connect a 160mm long heatsink to the system along with the 330mm graphics card.

When required you can also connect the PS2 12V module for a quick boost. Now coming to the storage, the InWin 301 ATX case supports one HDD and two SSD with internal storage. For ventilation and cooling of the hardware during intense gaming, there is a rear-aligned dust filter and liquid cooling.

Making space for 4 PCIe expansion slots allows it to connect sound cards, wireless cards, and cooling fans to the system. An advanced feature of the InWin 301 case is the USB Type-C port beside the USB 3.0 and audio ports. Keeping in view all the latest features of this case I think InWin 301 is one of the best smallest micro ATX cases that we can recommend to you.

Pros

  • Includes extra graphics card holder
  • Detachable routing space
  • Shock-proof build
  • The display panel is LED controlled

Cons

  • Heavy
  • 4 expansion slots are less than other ATX cases

Drawbacks 

  • Limited HDD spaces

9) Cooler Master MasterBox Q300L

BEST SMALLEST MICRO ATX CASES

Top Features

  • Power: 750W
  • Ports: 2-USB 3.0, 1-AUdio
  • Expansion Slots: 4
  • Dimensions: 15.2-9.1-14.9 inch
  • Weight: 0.48kg

Review

Cooler Master ATX cases are best for airflow with their amazing ventilation system, for this reason, it features 4 fans. The overall quality of the case makes it one of the best smallest micro ATX cases.

The Cooler Master MasterBox Q300L ATX case features four fans for plenty of airflows through the system. Additionally, it has space for 2 HDD or SSD; carry an SD card reader along with the USB 3.0 ports that together make the front panel of the case. Cooler Master MasterBox Q300L is of the Cooler Master cases which is a great option for both space savers and budget concerned users.

It is a mid-tower case thus it is not too small but not too big as well. Keeping everyday gaming and routine work in the sequence is very important so the Cooler Master MasterBox Q300L ATX case includes a good ventilation system maintaining your routine work with a cool backup hardware system.

Fortunately, this Cooler Master MasterBox Q300L ATX case comes with an easily accessible panel dust filter, fans, and cable set. So this is an awesome case for assembling your computer system in the background. It is small, so you can keep it in a small place on your table. Cooler Master MasterBox Q300L is particularly designed for space savers who want to include a powerful PC for gaming.

To support heavy games for a long time it comes with two preinstalled 120mm fans and 240mm liquid radiators constituting the cooling system. Multiple storage options are given for certain products and a large 400mm space for graphics cards specifically. So we can say that the Cooler Master MasterBox Q300L is one of the best smallest micro ATX cases.

Pros

  • Accommodates additional graphics cards
  • Aesthetic look
  • LED fans
  • Excellent sleek design

Cons

  • Poor Build quality

Drawbacks 

  • 4 expansion slots only

10) Antec Minuet 350 Micro-ATX

BEST SMALLEST MICRO ATX CASES

Top Features

  • Power: 350W
  • Ports: 2-USB 3.1, 1-Audio
  • Expansion Slots: 7
  • Dimensions: 12.8-3.8-16.8 inch
  • Weight: 9.3kg

Review

It is indeed one of the best smallest micro ATX cases because it occupies very little space with a pleasing design that will look great with a PC.

The design of Antec Minuet 350 Micro ATX includes a large side window that showcases your PC components and preinstalled 120mm fans for cooling of the system during heavy workload. Now let’s come to the front panel, it carries 3.5 audio jacks, USB 2.0 ports, power and restart buttons as well an LED readout panel. The LED panel displays the system’s temperature and time depending on the settings.

The cool sleek design will attract most of the gamers with its less space occupying feature. So it is one of the best smallest micro ATX cases if you want a less space-consuming PC that does not sacrifice style and quality. It is a small, affordable, and sleek ATX case that can be used to build a small and slim computer.

As discussed before, the front panel has USB 2.0 ports along with the headphone audio jack yet the rear panel constitutes four USB 2.0 ports, audio input/output jack, eSATA port, and power button along with LED. Antec Minuet 350 Micro ATX case has a smooth, nice outer look and fair storage capacity for a space-saving case.

Antec Minuet 350 is undoubtedly one of the best smallest micro ATX cases because its small size and compact body can fit in any place adjustable on your desk. The small 12.8-3.8-16.8 inch size of the case is good to go with its 7 expansion slots. With the variety of expansion slots, you can easily fit all your PC components inside the case.

Pros

  • Durable ATX case
  • Space for two graphics cards
  • Enough free space for hard drives

Cons

  • Heavy

Drawbacks 

  • Cables are not managed at all

BUYING GUIDE

In this section of the article, I will be discussing some of the most important facts about ATX cases that are very basic and important to know for beginners.

Not knowing anything about what you are purchasing can cause you a great loss. So I will be discussing some specs about the best smallest micro ATX cases that you must know before finalizing any case for your computing system.

If you have reached this far u suggest do not leave the buying guide unread because it might stop you from purchasing a product that is not best for you. So without further due let’s get into the guide.

Cooling & Noise

There are different ways of system cooling and different modules for this purpose. If you wish to install liquid radiators into the case then you just choose one that offers nice placement and size of the modules. Usually, a case shows specifications of the placement and size so find a case that meets your requirements.

Mediate airflow is essential for the proper working of powerful hardware for which the cases come with fans either pre-installed or customizable. An excessive number of fans can cause noise which you don’t want to keep noise in view when you buy a case.

Customization & Build Quality

The design and build quality of a case is the first thing that anyone would notice. Anesthetic chassis can attract viewers’ minds instantly but keep in mind that if you buy a tempered glass panel case it will require extra attention to hide the ugly wiring.

Customization can be made to cases like RGB lights, fans, liquid radiators, and many more offered by individual cases. So if you are a person who likes these customizations do check before purchasing a case.

Dust Filter & Components Placement

If you work in a dusty atmosphere it is necessary to buy a dust-proof case for your computing system in order to protect it from any harm. Cases provide specific spaces for components so you must check the components placement of a case according to your needs and then choose one.

FAQ’s

1) How small is micro ATX?

A micro ATX motherboard measures 9.6×9.6 inches so it is a clear indication that a case that supports micro or mini ATX will be smaller than the one that supports a standard ATX. A standard ATX measures 12×9.6 inches.

2) What are the cons of micro ATX?

Yes, micro ATX has some drawbacks that you must know before purchasing it.
1. A micro ATX has less slots for RAM (2 instead of 4)
2.They have less number of expansion slots
3. They show poor performance when it comes to overclocking and large video cards because 4. They are basically not made to support them.
5. They lack in hardcore games.

3) Can an ATX fit in a micro ATX case?

Well the answer is, NO. ATX cannot fit into a case meant for mATX (microATX) because it is way larger than the mATX. So you must have an ATX case for the ATX motherboard.

Conclusion

This was our article about the “Best Smallest Micro ATX Cases”. We tried our level best to find and review the best smallest micro ATX cases. The above-mentioned buying guide will help you while choosing a case so do check it. All the cases mentioned were analyzed and tested by experts so we hope it helps you.

We hope the article was of use to you!

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