When looking for the smallest micro ATX case, you’ll come across many options to pick from. But unless you really know what you’re looking for, finding the best small micro ATX case for your needs might be difficult.

There are a lot of factors to consider, and there are a lot of brands that will have options that aren’t really worth it. You’ll come across cases that neglect important aspects such as good airflow and cable management, and there are even some that are pretty compact but can’t really fit the GPU you’ve got in mind for your build.

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To help you a bit with this, we’ve got a list of some of the best small micro ATX case models on the market. If we’re being perfectly honest, you can’t go wrong with pretty much any of them, but we’ll take a good look at all and hopefully, you’ll get an idea of which one suits you best.

Comparison Table of the Smallest Micro ATX Cases

ImageNameFeaturesPrice
Thermaltake Core V21 SPCC Micro ATX Cube Computer Chassis CA-1D5-00S1WN-00,BlackThermaltake Core V21
  • Dimensions (H x W x D): 13.2 x 12.6 x 16.7 inches
  • Weight: 14.3lbs
  • Excellent airflow and plenty of versatility for setting things up
CORSAIR CRYSTAL 280X RGB Micro-ATX Case, 2 RGB Fans, Lighting Node PRO included, Tempered Glass - Black (CC-9011135-WW)Corsair Crystal 280X RGB
  • Dimensions: (H x W x D): 13.8 x 10.9 x 15.7 inches
  • Weight: 16lbs
  • Unparalleled ability to showcase the internals of your system with three tempered glass panels
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
  • Dimensions (H x W x D): 14.9 x 9.1 x 15.2 inches
  • Weight: 8.2lbs
  • Magnetic front and top panel dust filters
CORSAIR Carbide AIR 240 Micro-ATX and Mini-ITX Case, High-Airflow - WhiteCorsair Carbide Air 240
  • Dimensions (H x W x D): 12.6 x 10.2 x 15.6 inches
  • Weight: 12.13lbs
  • Simple and minimalist, yet beautiful design
Cooler Master Silencio S400 mATX Tower W/Sound-Dampening Material, Sound-Dampened Steel Side Panel, Reversible Front Panel, SD Card Reader, and 2X 120mm PWM Silencio FP FansCooler Master Silencio S400
  • Dimensions (H x W x D): 16.1 x 8.3 x 16.4 inches
  • Weight: 15.5lbs
  • Excellent noise isolation
darkFlash Micro ATX Mini ITX Tower MicroATX Computer Case with Magnetic Design Wide Open Door Opening Swing Type Tempered Glass Side Panel (DLM21 Black)darkFlash Micro ATX Tower DLM21
  • Dimensions (H x W x D): 15.9 x 8.2 x 15.9 inches
  • Weight: 13.2lbs
  • Very budget oriented with no corners cut
InWin 301 Black Tempered Glass Premium Micro-ATX Mini-ITX Tower Gaming Computer CaseInWin 301
  • Dimensions (H x W x D): 14.3 x 7.4 x 14.6 inches
  • Weight: 14.4lbs
  • Minimalist industrial design looks stunning and is highly wallet friendly
Thermaltake Versa H15 Micro ATX Mini Tower Computer Chassis with One 120mm Rear Fan Pre-Installed CA-1D4-00S1NN-A0Thermaltake Versa H15
  • Dimensions (H x W x D): 16.7 x 9.4 x 16.7 inches
  • Weight: 9.55lb
  • Wallet-friendly case that makes no compromises
Thermaltake Level 20 VT Tempered Glass Interchangeable Panel DIY LCS Chamber Concept Micro ATX Modular Gaming Computer Case CA-1L2-00S1WN-00Thermaltake Level 20 VT
  • Dimensions (H x W x D): 13.7 x 13 x 16.9 inches
  • Weight: 19.1lbs
  • Four 4mm thick tempered glass side panels
Cooler Master MasterBox Q300P Micro-ATX with Dual 120mm ARGB Fans, Front/Top Dark Mirror Panel, Transparent Acrylic Side Panel, Adjustable I/O  & RGB Lighting SystemCooler Master MasterBox Q300P
  • Dimensions (H x W x D): 17.7 x 9.1 x 17.7 inches
  • Weight: 13.2lbs
  • Beautiful design with removable carrying handles
Thermaltake Versa H18 Tempered Glass Black Spcc Micro ATX Gaming Computer Case CA-1J4-00S1WN-01Thermaltake Versa H18
  • Dimensions (H x W x D): 14.96 x 8.07 x 15.35 inches
  • Weight: 10.2lbs
  • Excellent cable management capabilities
Cooler Master MasterBox MB320L ARGB Micro-ATX with Dual ARGB Fans, DarkMirror Front Panel, Mesh Front Intake Vents, Tempered Glass Side Panel & ARGB Lighting SystemCooler Master MasterBox MB320L
  • Dimensions (H x W x D): 16.14 x 8.56 x 17.15 inches
  • Weight: 14.1lbs
  • Excellent airflow thanks to the two mesh intakes

  1. Thermaltake Core V21 SPCC

Thermaltake Core V21 SPCC Micro ATX Cube Computer Chassis CA-1D5-00S1WN-00,Black

When it comes to compact cases, especially small ones for micro ATX builds, Themaltake has some really nice options. And by far one of the most popular ones is the Core V21 case. It’s a compact cube case that has excellent build quality and plenty of versatility so you can set things up just how you want them.

To begin with, you’re looking at a case that you can set up both horizontally and vertically, and it can host both an mATX and a mini ITX motherboard. This is the versatility we’re talking about, and the chamber concept design that has plenty of cable management room just adds to it. You have plenty of airflow when you set things up right, and you get buttons on the left side of the case, which makes for a clean aesthetic upfront.

Add to this the excellent
capabilities for storage and cooling, and you’re looking at a phenomenal case
that also doesn’t cost too much.

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  1. Corsair Crystal 280X RGB

CORSAIR CRYSTAL 280X RGB Micro-ATX Case, 2 RGB Fans, Lighting Node PRO included, Tempered Glass - Black (CC-9011135-WW)

While the Carbide Air is usually
the go-to case for mATX builds, Corsair has a much more modern variant. Well,
that’s if you don’t mind paying a bit extra for it. We’re talking about the
Crystal 280X, a case that gives you an unparalleled ability to put your system
on display.

The hallmark feature of the
Crystal 280X is undoubtedly the cooling options. You can have up to six 120mm
cooling fans, and there’s room for a 240mm radiator at either the top, bottom
or front. The case does come with two Corsair LL120 RGB fans to get you started
and illuminate your build.

There are three tempered glass
panels that will showcase your system in a very beautiful way. The dual-chamber
layout gives you a hidden area to hide all your cables, so cable management
won’t be an issue here. Aside from cooling, there’s also plenty of room for
storage, with up to two 3.5” drives and three 2.5 drives. It’s overall one of
the best micro ATX cases.

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  1. Cooler Master MasterBox Q300L

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 are well known for their excellent cases that range from budget options to high-end models. However, when looking for the smallest micro ATX case for your next build, it’s the MasterBox Q300L you should be looking at. It’s a compact case with a lot of versatility and beautiful design.

We must compliment the front panel, which comes with a magnetic dust filter, and so does the top panel, too. They look stunning and make cleaning your system a breeze. We also love the I/O panel, and the fact that you can have it in one of six possible locations. This only adds to the versatility, and there’s also the fact that you can have this either horizontally or vertically set up, it works both ways.

Inside you get room for an mATX board, but you can fit a normal ATX power supply, which is nice. Behind the motherboard tray, you will find extra space for cable management, making it really easy regardless of how many cables you have. All things considered, this is truly an excellent option for a compact mATX case.

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  1. Corsair Carbide Air 240

CORSAIR Carbide AIR 240 Micro-ATX and Mini-ITX Case, High-Airflow - White

Possibly one of the best selling micro ATX cases of all times, the Carbide Air is still one of the best options even today, when you’ve got a lot of choices. It comes with a compact, simple and minimalist design that doesn’t cut any corners, with its only downside being the high price.

If you don’t mind the price,
however, you get a case that allows you to fit a compact motherboard, but then
add a full-size graphics card to the system. If going for a micro ATX setup,
you can have dual GPUs and a 240mm liquid cooling radiator, that’s how well
made it is in terms of space.

Build quality is phenomenal, with
a metal case and a side window panel that lets you showcase your entire build. There
are plenty of drive bays, so you can have quite a lot of storage in your build.
Add to this the cable management room that sits behind the motherboard tray,
and you’ll have a stunning build in no time.

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  1. Cooler Master Silencio S400

Cooler Master Silencio S400 mATX Tower W/Sound-Dampening Material, Sound-Dampened Steel Side Panel, Reversible Front Panel, SD Card Reader, and 2X 120mm PWM Silencio FP Fans

The fact that you’re looking for an mATX case doesn’t mean you’re limited to loud cases with little to no isolation – the Silencio S400 is one of the quietest cases you can get for an mATX build, and it’s not too expensive either. This makes it an excellent choice for people who want a minimalist design and a near-silent system.

There’s plenty of sound dampening
material behind the front panel, both side panels, and the top panel.
Unfortunately, this means there’s no tempered glass side panel so your system
will remain hidden. You can, however, remove the top cover panel to increase
ventilation when you need to.

The steel front door can be
opened from any side, which is a nice feature. You also get two of Cooler
Master’s PWM Silencio FP fans at 120mm each, complete with rubber padding to
keep things cool, yet quiet.

Now, make no mistake, this might
not be the prettiest case with its industrial design. But if you want the
smallest micro ATX case that keeps things near-silent, you won’t find a better
option.

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  1. darkFlash Micro ATX Tower DLM21

darkFlash Micro ATX Mini ITX Tower MicroATX Computer Case with Magnetic Design Wide Open Door Opening Swing Type Tempered Glass Side Panel (DLM21 Black)

Even though there are certainly fewer choices than with a full size or mid-size tower, the fact that you’re going for a micro ATX case doesn’t mean you have to spend a lot of money to get a beautiful design – just look at the darkFlash DLM21. It’s a compact case with a lot going for it, and it comes in at a very reasonable price.

First things first, the front
panel and its triangular design looks really nice and modern. Pair this with a
window side panel that opens and closes magnetically, and you’ve got yourself a
truly stunning case that allows you to showcase your build’s internals. The
window is darkened, which subdues any light effects inside the case for an even
better look.

The case is compatible with a
240mm water cooler, or you could go for dual 120mm or 140mm air coolers, so you
do get some cooling versatility. Add to this quite a lot of room for cable
management, and you’re looking at an excellent budget mATX case.

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  1. InWin 301 Black Tempered Glass

InWin 301 Black Tempered Glass Premium Micro-ATX Mini-ITX Tower Gaming Computer Case

InWin is another one of those
brands that has some truly stunning and highly functional cases at reasonable
prices, and their 301 is one of the best options for users looking for an mATX
case for their next build.

The entire case comes with a
minimal design. It’s all black, with the exception of the colorful inputs at
the front and the LED display above them. The side panel is made of tempered
glass and is easily detachable, you can remove it just by pressing a single
button.

Ventilation is excellent, and the
case does provide plenty of airflow. You can even go for up to a 240mm radiator
at the front, or a 120mm radiator in the rear. Cable management, however, isn’t
perfect, and we would’ve preferred a bit more room in that regard. You can,
however, fit a GPU that’s up to 330mm long, which is a nice feature, and an ATX
PSU at up to 160mm long.

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  1. Thermaltake Versa H15

Thermaltake Versa H15 Micro ATX Mini Tower Computer Chassis with One 120mm Rear Fan Pre-Installed CA-1D4-00S1NN-A0

Compared to their Cube designs, the Versa lineup by Thermaltake looks more like a conventional case. The H15, in particular, is the smaller variant that’s also incredibly budget-friendly, yet it is still one of the best micro ATX case models you can go for at the moment.

When you get it, it comes with a
single 120mm fan preinstalled. But the perforated top panel and high bottom
stands allow for plenty of airflow, so when you add a few more fans, you’ll get
excellent cooling. It’s worth noting that you’re limited in terms of CPU
cooling, as the maximum height is 155mm. The maximum GPU length is pretty good,
however, at up to 315mm.

The drive bays are completely tool-free,
and the case does provide ample room for cable management in the back. Both the
front and the top can accommodate up to a 240mm radiator, which combined with a
good exhaust can give you low temperatures on your entire system. A thing to
note is that if you have an optical drive installed, you’re limited to a mini
ITX build, which is something to note.

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  1. Thermaltake Level 20 VT

Thermaltake Level 20 VT Tempered Glass Interchangeable Panel DIY LCS Chamber Concept Micro ATX Modular Gaming Computer Case CA-1L2-00S1WN-00

There are some people that just want their entire micro ATX build to be on display for everyone to see. If you’re one of those people, Themaltake’s Level 20 VT case is the one to go for. This case comes with a compact, “chamber” design that gives you quite a lot of versatility and allows you to set things up in a variety of ways.

First things first, there are
four tempered glass side panels which are 4mm thick. This is plenty of
protection for your components, but also a very nice view of everything that’s
happening. The top, sides and bottom panes are interchangeable, so you can have
them set up just the way you like them. One of those panels is gapped, to
increase airflow.

There’s no shortage of room for
cable management, and this is one of the best cases you could possibly go for
if you’re making a custom cooling loop. You’ll be able to display it really
nicely, something not a lot of cases will offer.

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  1. Cooler Master MasterBox Q300P

Cooler Master MasterBox Q300P Micro-ATX with Dual 120mm ARGB Fans, Front/Top Dark Mirror Panel, Transparent Acrylic Side Panel, Adjustable I/O  & RGB Lighting System

Make no mistake, the Q300P is not
the most compact case in Cooler Master’s Masterbox lineup. It is, however, one
of the most beautiful ones for users looking to build a micro ATX system on a
budget and want their entire system to be on display.

There are edge-to-edge acrylic
panels that will let you showcase the internals rather easily, and they do look
pretty good. Add front fans, or use the included 120mm RGB fans at the front,
and they’ll look really stunning through the darkened transparent panel. While
we’re discussing the design, it’s worth mentioning that you have an I/O panel
that you can have at any of the six possible locations, and there are four
removable handles that let you carry the case around.

A nice thing about the Q300P is that it can host a full-size ATX power supply, so you aren’t limited in that regard. There’s also plenty of space behind the motherboard tray for cable management, which when done well, results in a really clean build aesthetically.

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  1. Thermaltake Versa H18

Thermaltake Versa H18 Tempered Glass Black Spcc Micro ATX Gaming Computer Case CA-1J4-00S1WN-01

There are truly a lot of people
out there who simply love a good mesh design. If that’s you, and you want a
good, compact mATX case without spending half of your system’s budget on it,
the Thermaltake Versa H18 should be right up your alley.

The front panel is all mesh,
which does help with cooling too. There’s a blue LED strip off to the side, to
make the design less boring and a bit more aesthetically pleasing. And it
succeeds rather well. The tempered glass side panel looks really nice, too, and
lets you showcase your system’s internals.

On the inside, you can have up to a 240mm or 280mm fan, which is quite a bit for an AiO. There is, however, a full-length PSU cover which can house a decent sized PSU, so that’s one less worry for you. There are four hidden drive bays in total, two of which are 2.5” and two are 3.5”. Overall, the Versa H18 is a very reasonably priced case that cuts no corners, and could very well be the go-to case for your next micro ATX build.

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  1. Cooler Master MasterBox MB320L

Cooler Master MasterBox MB320L ARGB Micro-ATX with Dual ARGB Fans, DarkMirror Front Panel, Mesh Front Intake Vents, Tempered Glass Side Panel & ARGB Lighting System

Another one of Cooler Master’s MasterBox cases, the MB320L is an absolute beast when it comes to airflow. Whether you’ve got a high-temperature system, or you just want a bit more airflow going through it, the large mesh intakes that flank the front transparent panel are something you’ll love.

Behind the front panel, you have two preinstalled 120mm ARGB fans, and you can use the included splitter to have a comprehensive lighting system by adding a few more compatible fans. The side panel is tempered glass, too, and it spans edge to edge. If you want to show your build’s internals, there’s plenty of possibilities for that. You can have up to six 120mm fans at various places of the case, and you can also have a radiator at the front, or the top, or the rear, which adds to the versatility of the case. And best of all? It’s actually priced rather well compared to most of the competition!

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