8 Best Mini ITX Cases: Expert Picks (2023)

Shrink your PC down to microscopic proportions without losing its bite with these bite-sized cases!

Matt Vallence
Matt Vallence
19 Min Read
 
 
 
 
 
 
 
 
Specs:
  • Supported motherboards: Mini-ITX
  • Dimensions: 250 x 170 x 342mm
  • Max CPU cooler height: 73mm
  • Max GPU length: 333mm
Specs:
  • Supported motherboards: Mini-ITX
  • Dimensions: 244 x 166 x 340mm
  • Max CPU cooler height: 55mm
  • Max GPU length: 322mm
Specs:
  • Supported motherboards: Mini-ITX, mini-DTX, micro-ATX, ATX
  • Dimensions: 247 x 167 x 362mm
  • Max CPU cooler height: 73mm
  • Max GPU length: 336mm
Specs:
  • Supported motherboards: Mini-ITX
  • Dimensions: 245 x 166 x 360mm
  • Max CPU cooler height: 67mm
  • Max GPU length: 320mm
Specs:
  • Supported motherboards: Mini-ITX, Mini-DTX
  • Dimensions: 205 x 350 x 460mm
  • Max CPU cooler height: 165mm
  • Max GPU length: 335mm
Specs:
  • Supported motherboards: Mini-ITX
  • Dimensions: 253 x 178 x 409mm
  • Max CPU cooler height: 140mm
  • Max GPU length: 335mm
Specs:
  • Supported motherboards: Mini-ITX
  • Dimensions: 292 x 185 x 376mm
  • Max CPU cooler height: 155mm
  • Max GPU length: 330mm
Specs:
  • Supported motherboards: Mini-ITX
  • Dimensions: 349 x 210 x 372mm
  • Max CPU cooler height: 165mm
  • Max GPU length: 325mm
Specs:
  • Supported motherboards: Mini-ITX
  • Dimensions: 250 x 170 x 342mm
  • Max CPU cooler height: 73mm
  • Max GPU length: 333mm
Specs:
  • Supported motherboards: Mini-ITX
  • Dimensions: 244 x 166 x 340mm
  • Max CPU cooler height: 55mm
  • Max GPU length: 322mm
Specs:
  • Supported motherboards: Mini-ITX, mini-DTX, micro-ATX, ATX
  • Dimensions: 247 x 167 x 362mm
  • Max CPU cooler height: 73mm
  • Max GPU length: 336mm
Specs:
  • Supported motherboards: Mini-ITX
  • Dimensions: 245 x 166 x 360mm
  • Max CPU cooler height: 67mm
  • Max GPU length: 320mm
Specs:
  • Supported motherboards: Mini-ITX, Mini-DTX
  • Dimensions: 205 x 350 x 460mm
  • Max CPU cooler height: 165mm
  • Max GPU length: 335mm
Specs:
  • Supported motherboards: Mini-ITX
  • Dimensions: 253 x 178 x 409mm
  • Max CPU cooler height: 140mm
  • Max GPU length: 335mm
Specs:
  • Supported motherboards: Mini-ITX
  • Dimensions: 292 x 185 x 376mm
  • Max CPU cooler height: 155mm
  • Max GPU length: 330mm
Specs:
  • Supported motherboards: Mini-ITX
  • Dimensions: 349 x 210 x 372mm
  • Max CPU cooler height: 165mm
  • Max GPU length: 325mm

There’s never been a better time to build a tiny PC! A palm-sized motherboard at its heart has everything you need, from multi-terabyte storage potential through networking to GPU support. Since SLI and bulky drives have fallen out of fashion. That means the best Mini ITX case can be smaller yet have good enough cooling not to slowly cook the components inside.

We’ve assembled the strongest miniature cases you can get today. Some boast supreme portability, while others turn PC building convention on its head to maximize airflow. Dive into our diverse selection and see which tiny titan suits you best.

1

SSUPD Meshlicious

SSUPD Meshlicious
SSUPD Meshlicious

Dimensions: 250 x 170 x 342mm | Supported motherboards: Mini-ITX | Included fans: N/A | Max CPU cooler height: 73mm | Max GPU length: 333mm | Max PSU length: 170mm | Internal bays: 2x 3.5", 4x 2.5"

Pros:
  • Easily fits large GPUs & AIOs, ATX PSUs, and several drives
  • Excellent thermals
  • PCIe 4.0 riser cable included with purchase
Cons:
  • Expensive due to riser cable
  • Lackluster I/O

SSUPD is an offshoot of Lian Li, so the fact that their first cases already made waves is unsurprising. The Meshlicious’s successor is also on the list, but the original remains the best ITX case for several reasons. It’s relatively roomy, has excellent thermals, and rewards experimentation by accommodating a broad range of component sizes.

The Meshlicious is a vertical case with, you guessed it, a focus on mesh panels. They’re everywhere except on the bottom and in the back. Each sports 1mm-wide holes that double as dust protection. You can also opt for glass side panels with two tint levels. These seriously impact thermal performance, so you shouldn’t bother.

The inside is split into the CPU area in front and space for the GPU in the back. The motherboard tray sits in the middle of the back, with a PSU cage underneath it. The Meshlicious supports ATX power supplies, and you’re only giving up a single 2.5” SSD spot in return.

Ribbon and riser cables allow you to mount a full-sized graphics card vertically or go for a horizontally-mounted compact option. The latter leaves enough room for two more 3.5” HDDs if you need the kind of storage capacity.

The back of the case gets packed tightly with everything in place, but cable management isn’t problematic. Luckily, the front quarter remains free. That’s where you’ll want to put a 280mm AIO for best results or use two fans instead.

The Meshlicious is essentially an open box, so thermal results are excellent for the GPU & CPU alike. The mesh is fine enough to offer some dust protection. It doesn’t dampen sound, though.

If there’s something to nitpick, it’s the I/O. It has 10Gbps USB-C and a single USB-A cable, meaning you’ll have to plug peripherals and headsets straight into the motherboard.

2

LIAN LI A4-H2O

LIAN LI A4-H2O
Lian Li A4-H2O

Dimensions: 244 x 166 x 340mm | Supported motherboards: mini-ITX | Included fans: N/A | Max CPU cooler height: 55mm | Max GPU length: 322mm | Max PSU length: SFX, SFX-L | Internal bays: 1x2.5"

Pros:
  • Exceptionally small yet thermally efficient
  • Roomy GPU area with space for cabling
  • Panels are easy to remove
Cons:
  • Only supports one 2.5” drive

Squeezing the most potent custom builds inside the smallest room possible is one of SFF’s main draws. All our picks accomplish this, but the A4-H2O takes things to the extreme. At 11l, it’s the best Mini ITX case if you’re building a clean AIO-cooled computer.

The A4 H2O embodies simplicity since it’s a box with few embellishments. The front is solid and sturdy aluminum, with an in-line AIO on the left. It’s similar to the Meshlicious but has mic and headphone jacks. The side panels are identical, sporting a mesh center and structurally sound edges.

Removing all the panels is easy and requires no tools. Doing so reveals that the A4-H2O adopts the sandwich style. An SFX power supply joins your miniature motherboard on the left side, albeit to the right of the motherboard. You’ll find only one 2.5” SSD bay underneath the PSU cage, so the mobo’s M.2 slots will see heavy use.

Conversely, the right side is reserved for the GPU and is spacious in comparison. The included ribbon cables let you mount the card in a horizontal upright position, letting its fans blow air directly out of the case. Even the largest supported GPUs leave room on his side for cable management.

As its name and CPU clearance suggest, the A4-H2O focuses on water cooling. You can mount a 240mm AIO on top. It doesn’t seem like much compared to outer cases on the list, but a smaller AIO doesn’t impede the thermals. The case is open enough for unobstructed airflow, so the component and AIO fans do their job efficiently.

3

SSUPD Meshroom S

SSUPD Meshroom S
SSUPD Meshroom S

Dimensions: 247 x 167 x 362mm | Supported motherboards: mini-ITX, mini-DTX, micro-ATX, ATX | Included fans: N/A | Max CPU cooler height: 73mm | Max GPU length: 336mm | Max PSU length: 170mm | Internal bays: 2x 3.5", 3x 2.5"

Pros:
  • Holds two radiators simultaneously
  • Cheaper than the Meshlicious
  • Supports larger motherboards, if barely
Cons:
  • Power button in the back

SSUPD might have made the best Mini ITX case on their first go, but they weren’t content to rest on laurels. Think of the Meshroom as a second crack at our winner. It fixes some of the Meshlicious’s minor flaws and even supports larger motherboards.

The Meshroom has its own quirks, so we ranked it lower. However, don’t hesitate to pick it up over the Meshlicious if you find the new features and lower price compelling enough.

A glance at the outside might make one think this is just a recolored rebrand since the panels remain virtually unchanged. Mesh makes up an even greater part of them now, and the I/O is different. You still don’t get an audio jack, but the second USB-A plug is handy. We just wish SSUPD didn’t squeeze it in by placing the power button in the back.

The inside generally follows the original’s layout, with the mobo & PSU on one side and your choice of GPU size on the other. The three expansion slots now come with clamps that let you mount up to two HDDs if the graphics card leaves enough room.

You can move the GPU to one of three heights, freeing up additional drive & cable space underneath and making it easier for the ribbon cables to reach. The area next to the motherboard now has more hooks, making it easier to house a reservoir and other custom cooling loop components.

The front is still spacious enough for a 280mm AIO, and you can now mount a second 240mm unit on the GPU side. There’s no need to do this with the regular layout since temps align with the Meshlicious’s full mesh variant.

The Meshroom technically supports mATX and even ATX motherboards. The former works well since cable management is still not a hassle. However, using such larger boards means you’ll have to ditch the front AIO.

4

Lian Li Q58

Lian Li Q58
Lian Li Q58

Dimensions: 245 x 166 x 360mm | Supported motherboards: mini-ITX | Included fans: 1x120mm front | Max CPU cooler height: 67mm | Max GPU length: 320mm | Max PSU length: 160mm | Internal bays: 2x 2.5”/3.5", 3x 2.5"

Pros:
  • Split side panels are useful and attractive
  • Great airflow potential
  • Accommodates large GPUs and AIOs
Cons:
  • Installing ATX PSU limits cooling component choices

Do you want a sandwich-style enclosure for your PC that looks great without being an oven? Lian Li’s Q58 is the best mini ITX case for you then! Its split sides ensure great airflow. Moreover, the carefully-designed interior lets you install some hefty components without compromises or squeeze in an ATX PSU.

The Q58 is a 14l case whose double side panels immediately draw the eye. They’re mesh on the bottom and clear glass on top by default. However, you can easily rearrange the combination any way you like for maximum aesthetic effect or airflow potential. You’ll have to pop the mesh top open to do so, but the panels slide out easily after that.

Only the I/O is in front, complete with USB-C and a combo jack. The design doesn’t account for front fans, so opening the cover only reveals room for a 2.5″ drive. The top is wide enough to support a 280mm AIO or two blowers, with one more optional fan on the bottom. Going with an SFX PSU lets you mount that AIO and still have room for everything except a 3.5″ HDD.

The inside has a classic sandwich layout, with the upside-down motherboard and PSU on one side & the GPU on the other. The GPU needs a riser cable, and you get a PCIe 3.0 one. Sadly, PCIe 4.0 costs extra.

A lowered portion of the bottom adds room for more drives, bringing the total to four. Cable routing mainly goes through a space between the motherboard tray and PSU cage. While cramped conditions mean you’ll need to be creative, you can achieve a tidy build with little strain.

Loading the Q58 with a 300+mm GPU and maxing out its storage capacity has no impact on its excellent cooling potential. Close component proximity does make things loud, though.

5

Fractal Design Torrent Nano

Fractal Design Torrent Nano
Fractal Design Torrent Nano

Dimensions: 205 x 350 x 460mm | Supported motherboards: mini-ITX, mini-DTX | Included fans: 1x 180mm front | Max CPU cooler height: 165mm | Max GPU length: 335mm | Max PSU length: 200mm | Internal bays: 1x 2.5/3.5", 3x 2.5"

Pros:
  • Excellent airflow for the size
  • Unconventional layout allows for plenty of drives and long GPUs
  • Attractive look & modern I/O
Cons:
  • Installing fans on the bottom limits GPU options

Fractal Design’s air-focused Torrent line finally has a mini-ITX option too! The Torrent Nano has all of the original full tower’s charm while boasting unique features like unconventional drive and PSU placement. It’s also big enough to house sizeable cooling for the form factor, allowing for more powerful components.

In true Fractal Design fashion, the Nano’s front has an attractive asymmetrical mesh pattern. A dust filter matches its contours and protects a large 180mm fan inside the case. You can exchange the fan for two 140mm or 120mm alternatives. Depending on the exact model, the fan can be plain or RGB.

Both side panels are glass. The right one has heavier tinting to hide cables better. They slide on rails, so removing them requires no screws. You can fasten each panel with an additional screw, though.

The Nano has an unusual and spacious layout. The PSU goes in the back underneath the top cover. A 3.5” drive bay that also holds a 2.5”SSD is beside it. You can remove the solid top that covers them for easier installation. The I/O sits towards the front of the top. It’s standard but includes a 10Gbps USB-C.

While a long GPU will fit, there are some limitations. The floor is made entirely of mesh and has a large dust cover. It’s designed to house two more fans or even a 280mm AIO. The first option obstructs one of the three expansion slots while going with the AIO leaves room only for one.

The Nano’s weird layout helps it rank among the best mini PC case picks for cooling and airflow. Two fans on the bottom should be your go-to choice. They’ll take air in, while the front fan and the one on your PSU can expel it.

6

Hyte Revolt 3

Hyte Revolt 3
Hyte Revolt 3

Dimensions: 253 x 178 x 409mm | Supported motherboards: mini-ITX | Included fans: N/A | Max CPU cooler height: 140mm | Max GPU length: 335mm | Max PSU length: SFX or SFX-L | Internal bays: 1x 3.5", 3x 2.5"

Pros:
  • Compact and portable
  • Holds large GPUs and PSUs
  • Removing mesh panels significantly boosts already good cooling
Cons:
  • Installing and replacing a 3.5” drive can be tricky

Some users build small PCs for lack of space, others for portability. The Hyte Revolut 3 caters to both, offering a small chassis with a handle and headphone hangers you can proudly show off at any LAN party. It’s not meant to be air-cooled, yet offers surprisingly good airflow once you remove all the mesh panels.

The Revolt continues our exploration of unusual case layouts. It’s taller than it is long, and four sides have large square holes supplemented by finer inner mesh layers. The top handle is aluminum and can handle 30lb of weight, which your case shouldn’t exceed even with the biggest GPUs.

Speaking of GPUs, you mount them in the front. That means you have to rotate the motherboard 90 degrees to the left, and its I/O bracket is on the Revolt’s bottom. That’s a small price to pay to be rocking a full-length card in a case as small as this.

Hyte is owned by iBuyPower, a prominent prebuilt PC manufacturer. They also make power supplies, and you can get the Revolt with a 700W 80+ Gold one preinstalled. Its cage sits next to the 3.5” drive bay. We’d stick with the more easily accessible 2.5” slots and M.2 SSDs since you’ll have to remove several components if you ever want to replace the HDD.

The case asserts its water-cooling focus with a dedicated radiator bracket on the left side. It holds 240mm or even 280mm AIOs in a push configuration with the radiator facing outward. The entire system will run quietly if that’s your only cooling source.

We’re glad the Revolt lets you remove the panels since doing so genuinely benefits thermals. You’ll have to be more vigilant against dust since it will get in much easier. However, ditching the panels may net you high single-digit or even double-digit temperature drops in some situations. It’s well worth it if the case is struggling thermally.

7

Cooler Master NR200

Cooler Master NR200
Cooler Master NR200

Dimensions: 292 x 185 x 376mm | Supported motherboards: mini-ITX | Included fans: 1x120mm top, 1x 92mm back | Max CPU cooler height: 155mm | Max GPU length: 330mm | Max PSU length: SFX or SFX-L | Internal bays: 1x 3.5", 1x 2.5", 1x3.5”

Pros:
  • Excellent value for the money
  • Lots of cooling placement options
  • Easy to disassemble and cable manage
Cons:
  • I/O lacks USB-C

It wouldn’t be a case list with at least one Cooler Master model, and the NR200 deserves to be on it for several reasons. It’s neither too loud nor too restrictive. The thermals are excellent, and you can improve them further by dressing it to the nines with additional fans or radiators. Best of all, it’s cheaper than many of our alternatives.

Note: There’s also a variant called NR200P. It ships with an alternate tempered glass panel and two 120mm fans. You may also mount GPUs in it vertically with a riser cable.

The NR200’s clean design and solid front resemble the A4 H2O. All the panels are easy to remove and held in place by pins. This mechanism also makes for straightforward but effective mounting tools for several drive and fan mounting spots.

Cooler Master includes SickleFlow fans for the top and rear. You may mount one more on top and two on the bottom. It’s even possible to install a 280mm radiator on the left side without getting in the way of the GPU. Not that you’ll need as much, but being able to run seven fans simultaneously in a Mini ITX case is impressive.

The solid front panel protects two 2.5″ drive locations. They’re next to the SFX PSU cage, which you can mount to either side. An HDD fits beside the cage if you don’t go for the side-mounted AIO. Even though the manual doesn’t mention it, one more HDD slots under the GPU.

The default fan configuration and filter-covered mesh panels already provide adequate heat dissipation. Although many CPU air coolers will fit, consider an AIO for better results and less noise.

8

NZXT H210i

NZXT H210i
NZXT H210i

Dimensions: 349 x 210 x 372mm | Supported motherboards: mini-ITX | Included fans: 1x 120mm top and back | Max CPU cooler height: 165mm | Max GPU length: 325mm | Max PSU length: 310mm | Internal bays: 1x 3.5"/2.5”, 3x 2.5"

Pros:
  • Affordable for Mini ITX when on sale
  • Conventional layout makes building easier
  • Excellent cable management and storage support
Cons:
  • Single USB-A port on I/O

Almost all the cases in our list employ creative solutions to achieve the best fit for a broad range of components. What if you just want a smaller version of a Micro-ATX case and don’t mind a few extra mm here & there? The H210i is the best Mini ITX case for you. It has a tried & true layout and is easy to build in once you remove the panels. Better yet, it won’t even cost you $100 when on sale.

The H210i is an improved refresh of the acclaimed H200, so readers familiar with the older case will likely spot few differences. It still has a closed design, with a tempered glass side panel and small vent areas on either side for fans or AIOs to take in air. The case comes with preinstalled 120mm exhaust fans on the top and back.

Even though it’s our oldest pick, the H210i has a contemporary I/O complete with a combo jack and USB-C. The single USB-A port is a minor pain point since any USB 3.2 motherboard header supports two.

The standard internal layout is refreshing compared to other small cases. The PSU shroud effortlessly holds the longest units if you don’t use the 3.5” drive bay in the front. You can show off a 2.5” SSD by attaching it to the shroud towards the side, and two more fit behind the motherboard.

Cable management inside the H210i is a snap thanks to the iconic cover on the right that also conveniently provides hooks for parts of a water loop. The H210i includes a fan control hub. This lets you change fan speeds and color choices for both fans and an LED strip on top using the CAM software.

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Matt has been staring at one monitor or another for much longer than he'd care to admit. He enjoys keeping up with trends in gaming & related hardware, exploring immersive worlds in RPGs, as well as crafting his own using Blender.
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