Best Mini-ITX Cases 2026: Our Tested Picks for Compact PC Builds

Amazingly, the 6.7 × 6.7-inch Mini-ITX motherboard form factor, which debuted in 2001, has been around for nearly a quarter century. But while lots of other tech has continued to shrink in the last couple of decades, many builders and enthusiasts are still building PCs in big towers with full-size ATX motherboards. But that really isn’t necessary for most builders today, even if you're assembling a cutting-edge high-performance rig with a huge, heat-generating RTX 5090 or a Radeon RX 9070 XT).

For years, opting for Mini-ITX meant trading performance for a smaller PC, requiring short, compact graphics cards and low-profile coolers. Choosing a small-form-factor (SFF) SFX power supply is still often a requirement in the smallest cases, but most ITX cases released in the last few years also support full-length two- or three-slot graphics cards. And Nvidia is at least making a small effort to keep compact, high-performance card options around with its SFF-ready guidelines.

Still, GPUs have on gotten larger in the past few years, and the 5090 Founders Edition notwithstanding, third-party SKUs of 50-series cards are at least as large as their previous-gen counterparts. So be sure to check clearances before buying a case to fit your GPU (or a GPU to fit your case).

And, obviously, don't neglect cooling. Shoving high-end parts into a compact case without ample ventilation and fans will lead to throttling at best, and perhaps a shorter lifespan for your parts. Along those lines, we've also started fan testing at Tom's and have published our first Best PC Case Fans article covering several recent PC fans including some from Noctua, Arctic, Phanteks, and more. Find out which fans perform best for your needs, be it quiet operation, high-performance, or RGBs, we have you covered and expanding testing testing more fans as we speak.

The Best Mini-ITX Cases You Can Buy Today

Best Design-Focused Mini-ITX Case

The smallest PC cases from before the likes of the RTX 4090 and modern high-end CPUs are now basically obsolete because they can't handle huge graphics cards and the demanding thermals of modern components. But the Mini-ITX Fractal Design Terra case has (just) enough room for (most) big graphics cards, and is prettier than other cases thanks to an aluminum outer shell and some striking wood trim up front. Like the larger Fractal North tower, this case is a welcome departure from the aggressive lines and RGB of most gaming-focused cases.

The Terra's flip-up doors and adjustable spine also make this case fairly easy to build in considering its tiny size. Just make sure o pick up a modular SFX power supply. You'll need all the extra space you can get in this case.

Read: Fractal Design Terra Hands-On

Best Mini-ITX Case For Lan-Parties

When iBuyPower said that it would be opening the Revolt 3’s chassis for purchase as a standalone chassis, we were excited. And now that it’s here, we’re quite impressed. The Hyte Revolt 3 is a compact ITX case that doesn’t cost much at $129, but offers a wonderfully practical design with plenty of mesh, two click-away headphone holders and a carrying handle that sits flush into the top when you don’t need it. Of course, the build quality isn’t quite top-notch at this price. It’s all just painted steel, but the paint finish is nice and with its sleek, tidy looks, will fit in well in almost any gaming setup.

Internally, the Revolt 3 can also house almost any Mini-ITX system you throw at it, with room for large GPUs, up to a 280mm AIO, two 2.5-inch SSDs and one 3.5-inch drive. Better yet, its layout meanst it doesn't need a PCI-e riser cable, so you won’t have to worry about reduced bandwidth on an RTX 3000 or RX 6000 series graphics card.

The only real catch to this chassis is that it relies entirely on the AIO for airflow. But in testing, we found that this setup is perfectly adequate, even when we threw our high-TDP i5-11600K and RTX 3080 Ti graphics card at it.

Read: Hyte Revolt 3 Review

Best Looking Mini-ITX Case

The Evolv Shift 2 stands out at first glance for its towering, small footprint design and beautiful anodized aluminum panels. Priced at $100 for the mesh version and $110 for the variant with TG and an addressable-RGB fan, it easily earns a spot on our Best Mini-ITX PC Cases list.

With a small footprint and beautiful finish in both the tempered-glass and mesh variants, the Evolv Shift 2 is perfect as an SFF PC for use in the living room, or moving around the house wherever you need it. The easily accessible top IO makes plugging devices in a breeze too. Building in it was tight, and came with the typical frustrations associated with Mini-ITX systems, but I still managed a build within about 3 hours, and the end result was well worth the effort. The overall size is a bit bigger than most Mini-ITX cases would be, but the tempered glass side panels do wonders for creating systems to show off, though keep in mind that its single-fan radiator support may be too thermally limiting for some systems.

Read: Evolv Shift 2 Review

Best Mini-ITX Case for Novice Builders

Cooler Master’s NR200P Max is an excellent, ready-to-go chassis that comes from the factory with a powerful 850w power supply and 280mm liquid cooler. Top that with the inclusion of both mesh and glass side panels, a PCIe 4.0 riser cable, PSU cables and AIO tubes that are fit to length and pre-routed, and the NR200P Max is extremely simple to build in and an easy recommendation for those looking for simple setup.

All you need to bring is a motherboard, CPU, graphics card, memory, and a boot drive, letting you focus on the important things. The only real catch to this case is that its paint and finish are a bit boring. But with the glass panel showing off your fancy internals, we doubt you’ll mind. And if you do, paint it!

Read: Cooler Master NR200P Max Review

Quick Mini-ITX Case Shopping Tips 

Other Mini-ITX Cases Tested

NZXT H3 Flow

Fresh from its debut at Computex 2025, I spent a morning building a system in NZXT's latest Micro ATX / Mini-ITX chassis, the H3 Flow. The case continues the brand's boxy, mesh-focused design that we saw with the H5 Flow last year, with a curved mesh bottom chamber and an appealing $79 price (and was already selling for $69 at some stores when I wrote this).

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I like the case's size (15.75 x 8.86 x 15.31 inches), which leaves plenty of room for large GPUs (up to 14.84 inches and four slots). Back-connector motherboards are supported, along with up to a 280 mm radiator up front and a 240 mm radiator up top. The steel case also has a solid, premium feel and supports up to seven fans.

But only one 120 exhaust fan is included, so you'll want to add more if installing high-end hardware. And there's no included PWM hub, which can be a problem given that many small motherboards lack more than two or three fan headers. And while the front panel connectors are fused nicely in a block, that cable isn't long enough to work with all motherboards, and there's no audio jack on the case (just a USB-A, USB-C, and the power button).

The bottom of the case is also solid metal and sits nearly flush with your desk or floor, save for the curved mesh on the bottom side, below the glass panel. This means you'll need to mount the ATX power supply upside down, where its fan will likely be drawing at least some of its air from inside the case, directly below the heat-spewing graphics card.

Also, during my building in the case, I ran into some pain points – literally. The top of the case is permanently attached, with only a removable magnetic dust filter. That's fine for installing radiators, but it made plugging in the PCIe power connector for the CPU, right up against the top of the case, difficult in a way that reminded me of compact PC building from a decade or more ago – and not in a good way.

Plus, the cable routing, while adequate for a small case, basically consists of some tie-down points for the included plastic zip ties. And there's not a single rubber grommet to be found around the many cable pass-through holes.

That's not to say the NZXT H3 Flow is a bad case for those looking to build a PC that's moderately compact. Its build quality feels better than the similarly priced Lian Li A3-mATX (which doesn't come with any fans, but is smaller and, in my experience, more enjoyable to build in). Just know that you'll probably want to add your own fans and either a fan hub or some splitter cables to the H2 Flow, which effectively makes the case significantly more expensive, unless you can carry those parts over from a previous build.

Lian Li A3-mATX

We recently took a look at Lian Li's A3-mATX, a compact and affordable case that starts at just $69 (or $84 for the model with a wood front panel). It supports both Micro ATX and Mini-ITX motherboards, so it's not as small as most of the cases on this list designed solely for ITX boards. But it's well worth considering if you don't quite need the smallest case possible and you are installing a large graphics card -- basically any card should fit in this case, as it has 16.34 inches of of GPU clearance. It also can support a 360mm radiator / AIO up top and full-size power supplies. That said, you might have to go with an SFX model if you are installing a very long graphics card.

Also note that the standard model with the plastic front has no front airflow, while the A3-mATX-WD model has ventilation between its wood slats, backed by a mesh dust filter.

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