Best Mini-ITX PC cases for your gaming computer in 2021

Clean, good-looking, unique and tiny for your SFF PC build

A big gaming PC is not for everyone even it looks more attractive and can pack many components inside. Better for space and lightweight, small form factor Mini-ITX can do. You can fit anything you need for your computer into a build that's no bigger than a video game console with a great Mini ITX case. It's not just the scale that makes these builds so appealing but it's also the fact that you can now use surprisingly strong components in them. Processors and graphics cards are getting better all the time, and you can now find plenty of strong components that run cool enough to fit inside a Mini-ITX case. These small computers make good devices because they provide complete flexibility.

When you choose one of the best Mini-ITX cases, you won't have to compromise on the components you use, as many of them will let you use full-size graphics cards and high-end CPUs. There are Mini-ITX cases that you can easily build into and that are of the same high quality as any full-tower or mid-tower PC case. However, These builds are a little more difficult because you have to choose a lot of components based on whether or not they'll fit into the system you're building. If you are mattered to choose one, here are the best picks for you to choose from.

1. Louqe Ghost S1

Ghost S1

  • Motherboard Size: Mini-ITX
  • CPU Cooler Clearance: Up to 66mm, 240mm AIO radiator thickness 31.5mm, 2 x 25mm high fans w. L TopHat
  • GPU Clearance: Dual-Slot up to 145 x 45 x 305mm
  • Front I/O: 1 x USB 3.2 Gen 2 Type-C, 2 x USB 3.2 Gen 1 Type-A, 3.5mm Headset Combo Port, 1 x 3.5mm Mic, Power Button, Reset Button
  • Size: 188 x 140 x 322mm
  • Weight: 2.50kg


The Ghost S1 has an 8.2L volume and a layout similar to the A4-SFX, as well as support for GPUs up to 305mm. Help for CPU coolers is even better than the A4-SFX, with coolers up to 66mm tall fitting in the enclosure – and the Scythe Big Shuriken 2 is considered to be a perfect match for the Ghost S1 in this situation. The Ghost S1 has ‘top hats' and the ability to enlarge the case to suit massive radiator setups if you want to go AIO or liquid-cooled. If you want to mount top hats and AIO cool the Ghost S1, keep in mind that the volume of the case will start to approach that of the NCase M1 – so if that's the case, you may also want to consider this SFF case, which is regarded as the best mini-ITX case for airflow and water cooling.

2. Razer Tomahawk Mini-ITX

Razer Tomahawk Mini-ITX

  • Motherboard Size: ITX, DTX
  • CPU Cooler Clearance: 165mm
  • GPU Clearance: 320mm
  • Fan Mounts: 2 x 120mm (top), 1 x 120mm (front), 1 x 120mm (rear)
  • PSU Clearance: SFX, SFX-L
  • Front I/O: 1 x USB 3.2 Gen 2 Type-C, 2 x USB 3.2 Gen 1 Type-A, 3.5mm Headset Combo Port, 1 x 3.5mm Mic, Power Button, Reset Button
  • Size: 321 x 206 x 367mm
  • Weight: 5.81kg


RGB Chroma may be the main thing that Razer always brings. Razer has never forgotten to bring you the RBG under glow. Tomahawk Mini-ITX case allows you to go small in size but big in color. On the bottom of the box, you'll find support for Razer's Chroma RGB lighting effects, giving it a stylish under glow that'll go with a wide range of Razer mice, keyboards, headsets, and even the display. The case is tiny, but its size is just shrunk from the ATX case. It still has enough space for a tall CPU cooler or even a 240mm liquid cooling radiator.  You'll want to keep an eye on the length of your graphics card, as you'll only be able to go up to 320mm, but you'll have enough space for a thicker card that needs three expansion slots. There's still space for three 2.5-inch drives in this case, and Razer provides a lot of port choice on the front side.

3. NZXT H210i

NZXT H210i

  • Motherboard Size: Mini-ITX
  • Radiator Support: 120mm, 240mm
  • Front I/O: 1x Audio/Mic, 1x USB 3.1 Gen 1 Type-A, 1x USB 3.1 Gen 2 Type-C
  • Size: 210 x 349 x 372mm
  • Weight: 6.00kg


The NZXT H210i is basically a miniature version of the H710i, our favorite mid-tower. The H210i, which is limited to Mini-ITX builds, does an excellent job of cramming a high-end device into a small, minimalistic package. The case comes with NZXT's smart hub, two fans, and one RGB LED strip, much like its bigger sibling. Many of the features seen in a high-end mid-tower case are present in this case, including excellent cable management and a full-sized tempered glass screen.

The H210i has intelligent digital fan control and plenty of space to add more RGB lighting strips to the built-in RGB lighting. The H210i is the ideal solution for those looking to build a small yet efficient gaming PC, thanks to its support for liquid cooling and large graphics cards.

4. NCase M1

NCase M1

  • Motherboard Size: ITX, DTX
  • PSU Clearance: SFX, ATX
  • Front I/O: Power button with dual-color LED backlight (power on/HDD access), Two USB Type-A ports (to 19 pin USB header), One USB Type C port (to 20 pin/Type E header, One 3.5mm headphone/mic combo jack (to HD Audio header)
  • Size: 338 x 161 x 255mm
  • Weight: 2.00kg


The NCase M1 is regarded as the original SFF case, and it is credited with helping to propel the SFF builder's community to where it is today. It was born out of a highly popular Kickstarter campaign, and it has only grown since then. This 12.6L volume mini-ITX case is widely known as the best mini-ITX case for airflow, and it features a super-tiny footprint (though not as small as the previous entries on this list) without sacrificing efficiency.

The case supports graphics cards with a length of up to 317mm and a width of three slots, so pretty much any card you throw at it should match. Most noteworthy is that the NCase M1 supports CPU coolers with a height of up to 130mm, which is more than double that of the Dan Case A4-SFX.
In terms of cooling, the NCase M1 can fit a 240mm radiator in the enclosure for an AIO SFF build, or if you want an air-cooled setup, the NCase M1 can accommodate up to 5 120mm case fans – amazing. The best cooling setup for the NCase M1 is to use three fans: two for the graphics card intake and one for the side bracket intake – this is the simplest way to achieve very good thermal efficiency in the NCase M1.

5. CoolerMaster MasterBox NR200

MasterBox NR200

  • Motherboard Size: ITX, DTX
  • CPU Cooler Clearance: 155mm
  • GPU Clearance: 330mm
  • Fan Mounts: 2 x 120mm (top), 2 x 120mm (bottom), 2 x 120/140mm (side), 1 x 92mm (rear)
  • PSU Clearance: 130mm SFX
  • Front I/O: 2 x USB 3.2 Gen 1, 3.5mm Headset, Power Button
  • Size: 360 x 185 x 274mm
  • Weight: 4.58kg


With a very clean design from CoolerMaster, you can get a beautiful beast that is able to pack a lot of power inside. There's enough space for a decent-sized air cooler or even a 240mm radiator to get the liquid-cooling action with your CPU. You can also fit a 330mm-long graphics card in the case. You'll also get dedicated drive holders for two 2.5-inch drives and one 3.5-inch drive, both of which will back up the NVMe SSD you can certainly have in an SFX build like this. The amount of space this case has for fans is all the more shocking.

Hardware Canucks said, the MasterBox NR200 and NR200P ITX PC cases are Cooler Master's attempts to listing to community feedback and create an SFF gaming case that offers a TON of features, airflow and PC build options. But more importantly the MasterBox NR200 price is what really sets it apart from other cases in the ITX market. Since the NR200P and NR200 release date, we've been using them for a few ITX PC builds and came away impressed, both the Black and White versions. This is a case that doesn't sacrifice temperatures, airflow, or much of anything else.

These could be good cases for your SFF system.