Smallest ATX Cases

In the last decade, people have been more interested in building small and compact rigs. Sure everyone likes a PC with tons of high-end hardware, but not everyone has the space to accommodate all the components, and this is where the Small ATX case comes into the picture. They allow people to build compact yet powerful rigs without having PC components scattered over their desk space. A Small ATX case will nicely tuck away all of your PC components and take less space; that is why people who live in small apartments often invest in a small ATX case. Plus ATX PC cases allow people to build small rigs that are more portable, so it is used by people who travel a lot.

Some small ATX cases are also designed to offer better airflow, which helps keep the PC’s temperature low. They also protect the PC components against dust and insects. Not to mention, well-designed PC cases can serve eye-catching aesthetics. That is why most people are going for small ATX cases. However, before you invest in a small ATX case, you must consider some of its cons and weigh your options carefully. Some small factor PC rigs can end up costing way more than tower ATX builds. Besides this, most small form factor rigs can’t support multiple graphics cards. If you have already considered all these ideas and have decided that you want to build a small rig with a small ATX case, then you have come to the right place. 

I understand that it can be hard to select a suitable small ATX case for your rig. Since they are newer compared to some other PC components, not much reliable information is available on the internet about them. That is why I have reviewed some of the best smallest ATX cases and compiled this list to assist you in making a choice. Each of the ATX cases listed here possesses all the options, features, and functions available in Tower ATX cases, but they don’t occupy as much space. So without further delay, let’s get into it.

Smallest ATX Cases at a Glance:

  1. Fractal Design Meshify C
  2. Raijintek Thetis
  3. Thermaltake Core G3
  4. Corsair iCue 220T
  5. Rosewill Challenger S
  6. NZXT H510
  7. SilverStone Grandia GD09
  8. Rosewill Cullinan PX Series

The Smallest ATX Cases You Can Buy Today


Fractal Design Meshify C
Fractal Design Meshify C (Image credit: Amazon)

Fractal Design Meshify C

Best Compact ATX Case

SPECIFICATIONS

Motherboard Compatability: ATX | Dimensions: ‎16.1 x 8.54 x 17.72 inches | Weight: ‎11 pounds | I/O Ports: 2x USB 3.0, Audio I/O | Material: Tempered Glass

REASONS TO BUY

Flexible storage options

Unrestricted airflow

All set to dump noises and vibrations

The durable quality of material

REASONS TO AVOID

No place for new AMD cards

Have to remove Bay Drive cage for configuring new fans

Building their reputation from their mid-priced yet high-quality PC cases, Fractal Design introduced their lightweight models at reduced prices later on. Some of the key features that Fractal Design’s PC cases usually have, like the anodized aluminum front panel and the asphalt sound damping, were dropped to reduce prices. However, those cases still have the firm’s classic solid face design. Adding a glass panel wasn’t enough for Fractal Design, so they went on to meshify their Fractal Design Meshify C PC case. Fractal Design Meshify C is the best Smallest ATX case in our list.

The intake fans in the front don’t have to draw air through the thin slots located on the sides of the front panel; this means that Fractal Design Meshify C will probably be able to keep your components a little cooler. The automatic fan controllers usually turn down the fans on the systems that keep the temperatures in check, so a good cooling to noise ratio may be achieved. The Fractal Design Meshify C PC case’s front panel is not smooth and angled in different directions. The company claims that this increases airflow, but the more likely benefit is that ripples won’t show on it like they often do on a flat panel.

The front I/O ports are located at the top of the front panel that features two USB 3.0 ports, a microphone jack, a headphone jack, a reset button, and a power button. There is a mesh panel on the top of the case just behind the front I/O ports, fixed by magnetic strips. On the bottom of the case, there is a full-length bottom dust filter that slides in from the front and covers both the power supply inlet and an optional intake fan making it the best Compact ATX case. On the backside of the Fractal Design Meshify C PC case, we have a removable power supply flange; just above it are seven expansion slots with screw-on covers, and above that is a slide-able fan mount.

Raijintek Thetis
Raijintek Thetis (Image credit: Amazon)

Raijintek Thetis

Best Overall Smallest ATX Case

SPECIFICATIONS

Motherboard Compatability: ATX | Dimensions: 19.69 x 19.69 x 3.94 inches | Weight: 11.46 pounds | I/O Ports: 2x USB 3.0 Ports | Material: Steel & Aluminum

REASONS TO BUY

Good quality tempered glass side panels

Suitable with ATX power supply

Ventilate holes for best airflow

Removable side panels and drive cages

REASONS TO AVOID

The cable side doesn’t have enough space to sort easily

Somehow difficult to assemble and install

If you have seen the Raijintek Styx, then the Raijintek Thetis will look like a larger version that supports an ATX motherboard in a compact form factor. The Raijintek Thetis comes in either black or silver. Right of the bat, you can tell that the internals of the Raijintek Thetis PC case is flipped upside down since the windowed side panel is on the right side of the case instead of the left side, which is the traditional design. The Raijintek Thetis has a brushed aluminum, flat front panel with a power button on the front, and there is a metal mesh on the top of the case.

The front panel of the Raijintek Thetis PC case has diamond-cut edges, just like all other cases of this family. The expansion slots are located above the rear I/O on the back of the Raijintek Thetis PC case; the expansion slots are located above the rear I/O. There is a Raijintek logo at the bottom of the front panel and an around power button at the top of the front panel. There is a pre-installed 120mm exhaust fan, and the opening for the motherboard’s I/O is located at the bottom of the rear side of the Raijintek Thetis PC case.

There are seven expansion slots just above them. There is an additional piece placed on the screws since the screws are on the outside. Raijintek has routed the plug for the power supply to the top-right of the rear side of the Raijintek Thetis PC case. The front I/O panel is located on the top of the front panel, which has two USB 3.0 ports, a microphone jack, and a headphone jack that makes it the best overall Smallest ATX Case. The Raijintek Thetis PC case can support 129mm fans or even a 240mm radiator on the top of the case. This opening on the top of the Raijintek Thetis PC case has a metal mesh with a plastic frame.

Thermaltake Core G3
Thermaltake Core G3 (Image credit: Amazon)

Thermaltake Core G3

Best Budget Smallest ATX Case

SPECIFICATIONS

Motherboard Compatability: ATX | Dimensions: 17.9 x 14.6 x 5.5 inches | Weight: 9.3 pounds | I/O Ports: 2x USB 3.0 Ports | Material: SPCC

REASONS TO BUY

Great hardware gripping

Fully modular

Has handy I/O ports

Supreme Liquid-cooling solution

REASONS TO AVOID

Acrylic window gets gashes

Messy cable management

The Thermaltake Core G3 is a portable ATX case that keeps the style that has made this line of PC cases so well accepted, but the Thermaltake Core G3 PC case’s main reason is to bring the ATX gaming into the living room. Such a compact design allows the high-end components to be installed to allow gaming at 4K and with VR from your couch. There are two 120mm Turbo fans installed at the front of the case. There is a cage for storage drives inside the case, too, where you can either install two 3.5″ drives or 2.5″ drives. We call it the best budget Smallest ATX case is due to its low cost compared to others on the list.

The Thermaltake Core G3 PC case has only two expansion slots, although the Thermaltake Core G3 PC case allows support for Micro-ATX, Mini-ITX, and ATX motherboards. The Thermaltake Core G3 PC case stands almost as tall as an average mid-tower PC case, while from the front, it is slim from side to side. The Thermaltake Core G3 PC case’s front panel is mostly plastic and has rounded slits cut out of it. This leaves a little bit of solid plastic for the front I/O panel at the top of the front panel.

Thermaltake Core G3 PC case’s front I/O has a couple of activity LEDs, a reset button, a microphone jack, a headphone jack, two USB 3.0 ports, two USB 2.0 ports, and the power button. The Thermaltake Core G3 PC case’s top is painted black and is made of steel, and the magnetic plastic dust filter takes up most of it. The PC case has enough space under this dust filter for a fan. There is a clear plastic window on the right-side panel of the Thermaltake Core G3 PC case. There is steel around it, and at the top are slits backed with a magnetic dust filter.

Corsair iCue 220T
Corsair iCue 220T (Image credit: Amazon)

Corsair iCue 220T

Best Airflow Smallest ATX Case

SPECIFICATIONS

Motherboard Compatability: ATX | Dimensions: 15.55 x 8.27 x 17.72 inches | Weight: 14.3 pounds | I/O Ports: 2x USB 3.0, Audio/mic jack | Material: Tempered Glass, Alloy Steel

REASONS TO BUY

Good airflow

Outstanding design

Additional three RGB fans

Secure for hardware

REASONS TO AVOID

High cost

No exhaust fan

The Corsair iCue 220T is the best airflow Smallest ATX case in the list as it provides good airflow compared to other cases. Having a very outlandish design, Corsair iCue 220T introduces a new style for the front panel, going for a characteristic that usually does not favor perforated metal or solid panels. The front panel of the Corsair iCue 220T PC case has parallelogram cutouts that make the pressed-steel front panel more beautiful and provide a unique look. These also as ventilation holes which provide the fans in the front with a good amount of air.

Even though the case has three RGB 120mm fans, Corsair has still put the iCue 220T PC case as a budget PC case. Corsair is a bold move, especially with the case having such a unique style, tempered glass side panel, and the included fans. The front panel is held into place with four individual metal pins at each corner, securing into latches on the front of the chassis. The sizable protruding cutout at either panel edge provides a 4cm gap between the front perforated steel plate and the front intake fans. There are three Corsair iCUE SP120 RGB Pro fans that the case comes with; they have plugged in an integrated RGB controller that does not control the fan speed and only controls the lighting.

Having a different internal design than most of Corsair’s other PC cases, the Corsair iCue 220T PC case stands out which makes it the best Smallest ATX case. This PC case has a full-length power supply shroud. It also has cable pass-throughs for the GPU cut out of it and many rubber grommets in place everywhere else that keeps all of the cables out of the way and tidy. On the back of the motherboard tray, you will find a two-slot 3.5″ hard drive caddy in front of the mounting location for the power supply and two 2.5″ SSDs mount. There’s also the choice to mount the power supply in either fan orientation, whichever you prefer.

Rosewill Challenger S
Rosewill Challenger S (Image credit: Amazon)

Rosewill Challenger S

Best Value Smallest ATX Case

SPECIFICATIONS

Motherboard Compatability: ATX | Dimensions: 17.52 x 8.26 x 16.06 inches | Weight: 11.24 pounds | I/O Ports: 2 x USB 2.0, 1 x USB 3.0, Front Audio In / Out Ports | Material: SECC Steel

REASONS TO BUY

Comes along with a pre-integrated 450W power supply unit

Improved cooling system

The front panel have eSATA

Mounting of SSD also includes

REASONS TO AVOID

No control over fan speed

No high performance

Average airflow

Computer component installations have been made absolutely easy by the Rosewill Challenger S PC case as it offers tool-free assembly of 3.5″ Hard disk drives and 5.25″ devices. The Rosewill Challenger S PC case supports up to a 120mm long liquid cooling radiator in the front of the case and supports up to a 14.17″ long graphics card. There are dust filters located at the bottom of the case and at the top to provide the system’s neat and well-organized function. Rosewill Challenger S PC case comes with two fans, one located at the rear and one at the front of the hard drive slots. Inside the case at the top of the case, the mounting locations for three fans are all covered with a dust filter.

It is not easy to clean the filter without taking away the fans, but you can clean up the filter by using a vacuum cleaner which will suck up the dirt from the top of the case. The dust filter at the bottom of the case has a removable dust filter that slides out easily to clean it up. The front I/O panel is located at the top of the front panel, and it includes two USB 3.0 ports, two USB 2.0 ports, a microphone jack, and a headphone jack.

The Rosewill Challenger S PC case has slots for two DVD drives and three 3.5″ hard drives. There is a removable 5.25″ bracket if you prefer a fourth 3.5″ hard drive and one DVD drive. The Rosewill Challenger S PC case is quite spacious and also has a side window panel. The backside of the motherboard tray has enough space that allows the builders to route even thick power cables. The Rosewill Challenger S PC case also has many fan mounting locations to provide a good amount of airflow. The Rosewill Challenger S PC case has a good build and allows the users to access the components quite easily. Overall, It’s the best value Smallest ATX case.

NZXT H510
NZXT H510 (Image credit: Amazon)

NZXT H510

Best Premium Smallest ATX Case

SPECIFICATIONS

Motherboard Compatability: ATX | Dimensions: 16.85 x 8.27 x 18.11 inches | Weight: ‎15.97 pounds | I/O Ports: 2x USB 3.0, Audio/mic jack | Material: Tempered Glass

REASONS TO BUY

NZXT’s Premium quality fan

I/O ports support USB Type-C

Compact size

Great wire management

REASONS TO AVOID

The screw in design is outdated

Plain front

The H-series by NZXT is known for its clean lines and style design, and the NZXT H510 PC case is a small full ATX case that is no different. The tempered glass panel on the side of the case is mounted flush without any screws on the side. NZXT H510 PC case’s glass panel does not reach the bottom of the case. Instead, it just sits flush into a small metal side section which is the side of the power supply shroud. The front I/O panel is located at the top of the case, and it has a USB Type-A port, a USB Type-C port, a dual audio jack, and a power button.

There is side ventilation to provide the front fans with a good amount of airflow. This will work as indirect airflow, which will help in reducing the fan noise too. The side ventilation might look a bit restrictive, but there’s a huge airflow channel behind it, along with a dust filter on the side panel. The backside of the NZXT H510 PC case is in black color as well as the interior of the case is black too. Well, this will help in hiding most of the cables and fittings with the color alone. There is a single 120mm exhaust fan at the top of the backside of the case.

The fan is NZXT’s premium quality fan, and it is black, which goes with the theme here. You will find seven expansion slots below that. At the bottom, there is the ATX power supply mounting location. The mount has a slide-out dust filter. NZXT H510 PC case’s side panel can be removed with a single thumbscrew located at the rear. This helps in quick and easy access to the case interior. NZXT H510 is the best premium Smallest ATX Case that comes with a power supply shroud at the bottom which hides all the cables. The NZXT H510 PC case comes with two fans, and both are set up as exhausts.

SilverStone Grandia GD09
SilverStone Grandia GD09 (Image credit: Amazon)

SilverStone Grandia GD09

Best Small ATX Case

SPECIFICATIONS

Motherboard Compatability: ATX | Dimensions: 22 x 11 x 18 inches | Weight: 9.26 pounds | I/O Ports: 2x USB 3.0, Audio/mic jack | Material: Aluminum

REASONS TO BUY

Customization of Led indicator

Enough storage capabilities

Adaptable drive cages

Kensington and rack mounting support

REASONS TO AVOID

Only one fan include

Expensive than others

The SilverStone Grandia GD09 PC case is the best Small ATX case aimed at home theater enthusiasts. This PC case isn’t a small form factor PC case, but it’s compact enough to fit in many places where some ATX PC cases will not fit. The SilverStone Grandia GD09 has quite a lot going on inside the case, despite its small size. The case has a full cross-brace which is quite unusual at this price point. The SilverStone Grandia GD09 PC case comes with a single 120mm fan mounted as an intake next to the CPU mounting area. You can mount two additional 120mm fans in this case, one next to the power supply and one next to the fan that the case comes with.

The front I/O of the SilverStone Grandia GD09 features two USB 3.0 ports, a microphone jack, a headphone jack, and a power button, along with a multi-purpose drive tray in the corner of the case. The multi-purpose drive tray can support a single 5.25″ device plus one 3.5″ hard drive or two 2.5″ drives. If you forego any external drives, you can use the top half as a 3.5″ drive bay.

There is another 3.5″ drive bay hidden underneath and oriented vertically against the front of the case. You have to choose from the options that SilverStone provides the builders; for example, you can mount three 3.5″ drives if you don’t install anything else in the bays. There is a dedicated 2.5″ drive mount on the floor of the case. The finish and the fit of the SilverStone Grandia GD09 PC case are excellent. There is a texture to the paint job. The chrome-plated screws used in the case really give a classy look to the case.

Rosewill Cullinan PX Series
Rosewill Cullinan PX Series (Image credit: Amazon)

Rosewill Cullinan PX Series

Best Gaming Smallest ATX Case

SPECIFICATIONS

Motherboard Compatability: ATX | Dimensions: 18.7 x 18.5 x 14.3 inches | Weight: 17.41 pounds | I/O Ports: 2 x USB 3.0, Audio In & Out | Material: Steel

REASONS TO BUY

Good size for cube case

Looks amazing

Dual-chamber

Great airflow

REASONS TO AVOID

Cable management isn’t easy

The rear fan is only 80mm

The Rosewill Cullinan PX Series PC case is a steel and glass PC case. It is a small form factor case, but it is an ATX PC case and has a dual-chamber layout inside the case. The Rosewill Cullinan PX Series PC case has tempered glass on the side and the front with a solid brushed metal front panel on the right side of the front tempered glass and that is why it’s the best Smallest ATX case. The front I/O panel is located vertically on the solid brushed metal front panel, and it has two USB 3.0 ports, a microphone jack, a headphone jack, and a power button.

The Rosewill Cullinan PX Series PC case has an elegant look which makes it the best gaming ATX Case. The Rosewill Cullinan PX Series PC case has three pre-installed fans, one on the rear side of the case for exhaust and two on the front side for intake. The front glass panel has spaces along the sides to provide the front intake fans with good cool air.

The top of the case has a metal mesh. There are seven expansion slots on the backside of the case; on its left side is the mounting location for the power supply; on top of it is the mounting location for the exhaust fan. There are two holes for the tubing on top of it as well.

Frequently Asked Questions

What is the smallest ATX case?

NZXT H400i is surely is the best micro ATX case. Its unique look, RGB features, PSU shrouds, and tempered glass side panel are well-regarded. It is also admired for its neutral airflow.

What is compact ATX?

Micro ATX cases are widely popular among gamers as it provides efficiency and reliability at an affordable price and the best micro ATX can support normal and hardcore gaming.

Is Mini ATX good for gaming?

Well! Standard ATX cases are larger than both of them. Micro and mini ATX have fewer slots than a normal ATX and hold fewer power units. ATX is the largest, Micro ATX is the second-largest, and Mini ATX is considerably the smallest in the family.

Is Mini ITX better than micro ATX?

The answer is a clear NO! Micro ATX is larger than Mini ITX, and because of that, you can’t mount an ATX motherboard in a Mini ITX.

Zakriya Amir
Zakriya is right from Pakistan. He was raised with a quest for the gaming craze with an organization of specialized folks. This is the place he understood that computer games can grow your creative mind to unlimited universes. Gaming is no longer for him only a method for amusement, yet enthusiasm. From the youthful age of 8, gaming was simply the main method for communicating.