Mini ITX Cases

Mini-ITX is a motherboard size — 170mm square, with a single expansion slot — and the cases here are built around it rather than merely accepting one. Every chassis in this category takes a Mini-ITX board and nothing larger, which is what makes them genuinely small rather than just compact-looking.

That saves real desk space, and it places hard limits you have to plan for. Graphics card length is the measurement that ends most small builds, so check the case’s stated clearance against the exact card before ordering. CPU cooler height is the second, and many SFF cases need a low-profile cooler or an AIO. Power supply format is the third: most take SFX or SFX-L rather than standard ATX.

The range covers sandwich-layout designs such as the Fractal Terra and Ridge and the DeepCool CH160 and CH170, cube designs like the Fractal Node 304 and Antec Performance 1, and compact office chassis.

If you want a small machine that still takes a full-size card and a standard power supply, a mini tower is the easier build.