What is compact ATX?
Robert Guerrero
Updated on April 12, 2026
Herein, is compact ATX the same as micro ATX?
Mini-ITX motherboards, on the other hand, are shorter in both height and width than micro-ATX motherboards. They typically only feature a single PCIe lane. Their advantage, however, is in their smaller size. That is because most medium-to-larger sized cases will accommodate smaller form-factor motherboards.
Likewise, what is the smallest ATX case? Best Smallest ATX Cases
- 1- Cooler Master HAF XB EVO (The All Rounder)
- 2- Corsair Carbide Air 540.
- 3- Fractal Design Meshify C – Compact Computer Case.
- 4- Riotoro CR1080.
- 5- Corsair Carbide 400C.
- 7- CORSAIR Crystal 460X RGB.
- 8- Thermaltake Core G3 – Best Slim ATX Case.
- 9- Cooler Master Mastercase SL600M ( 2019 Red Dot Award Winner)
In this regard, what does Mini ATX mean?
Mini ATX or Mini-ATX is a name used for various motherboard form factors, as there is no single widely accepted form factor by this name. A common one is the 15 × 15 cm (5.9 × 5.9 in) size developed by AOpen Inc.. This Mini-ATX definition is slightly smaller than the Mini-ITX 17 × 17 cm (6.7 × 6.7 in) size.
Can a mini ATX fit ATX case?
microATX was explicitly designed to be backward-compatible with ATX. The mounting points of microATX motherboards are a subset of those used on full-size ATX boards, and the I/O panel is identical. Thus, microATX motherboards can be used in full-size ATX cases.
Related Question Answers
Should I go Micro ATX or ATX?
Answer: Micro ATX is the best choice in the majority of cases. Only go with ATX if you need more than 4 PCIe slots and only go with Mini ITX if you want the most compact PC that you can get.Why is Mini ITX so expensive?
Because when things get small enough it starts to take a ton of planning to squeeze everything into the small space. Hence it pushes the price up. Also, mITX boards don't sell as high volumes, limiting how much mass production you can do. and that drives the price up too.Is micro ATX bad?
There's nothing wrong with a Micro-ATX motherboard. Aside from lacking some expansion slots (PCI/PCI-E/RAM), many use the same chipsets as their ATX cousins and function just as well.Which is bigger Mini ATX or Micro ATX?
The standard ATX is the largest at 305 by 244 mm. The micro ATX is at second largest at 244 by 244 mm. Finally, the smallest is the mini ITX, which is 170 by 170 mm.Is an ITX build worth it?
Building a small form factor machine might mean an extra hour or two dealing with cable tidying in the tight confines of a mini-ITX case, but it's definitely worth it and saves a huge amount of space. The sacrifices are, for most of us, non-existent too, as long as you only need a single PCI-E card.What does ATX stand for?
Advanced Technology eXtendedAre micro ATX builds good?
To that end, Micro-ATX builds are extremely popular among gamers due to their efficiency, versatility, and affordable price point. Moreover, the best Micro-ATX cases provide the perfect chassis for both casual and hardcore gaming, with loads of great options to choose from.Is micro ATX good?
Yes, the Micro ATX is smaller version of the ATX. It has excellent performance and ma much lower price. It is especially suitable when you are looking for a motherboard that can suit your personal needs as opposed to business. If you choose to invest in an ATX, only do so when you require all additional PCIe slots.Is Mini ITX bad?
mini itx is good in certain situations, albeit there are limiting factors. but as far as raw specs, theres no reason an itx build cant be as powerful as a simple (single gpu) atx build.What size motherboard fits in a mini tower?
Full-tower and mid-tower cases both fit standard ATX motherboards—by far the most common motherboard size out there. Both can also fit smaller micro-ATX motherboards. Exact sizing varies from case to case, but most mid-towers run up to roughly 18 inches high and 8 or so inches wide.What does ITX stand for?
Information Technology eXtendedHow do I choose a CPU case?
If you want to choose a case with high air flow and good cooling capability consider the following:- The case should have the ability to accommodate multiple fans at various locations in the case (front, back, top, side, etc.)
- The panels (front, side, and top) on a case also play a large role in air flow.