First of all, having a smaller motherboard allows you to have a smaller computer overall. If you take a look at a computer case, you’ll see that much of its height is occupied only by the motherboard. If you want a smaller computer, it’s a good idea to start with a smaller motherboard.

The obvious difference between these motherboards is their size: Micro ATX is larger than Mini ITX. However why do we have mainboards of dissimilar dimensions in the first place? What are the advantages and disadvantages of different sizes? Let’s discuss Mini ITX Vs Micro ATX:


Micro ATX and Mini ITX are options for people who want smaller computers. Small PCs are great if you want something that is portable or like a server or media center that doesn’t take up much space. Remember that components designed for ATX computers may not fit in a smaller case.

Micro ATX is larger than Mini ITX, Mini ITX (“eXtended Information Technology”) which is even smaller than the Micro ATX. This can be perplexing, as the “Micro” card is bigger than the “Mini” card, so be cautious!


However, the smaller size comes at a cost. Smaller motherboards are possible by removing the expansion slots from the motherboard. The consequence is a mainboard that adjusts in mini cases, however does not have the choice to upgrade that bigger form factors.

MATX (micro ATX):-

MATX (micro ATX) – reduced ATX standard. It is mainly used in office machines where not many configuration slots are required. The mATX normally has dimension of 24.4 x 24.4 cm and comes with 4 expansion slots. The mainboard of the mATX normal has a major connector for linking a power supply, including 20 or 24 pins. Almost all models have a 24-pin connector.

  • Most prices are cheaper than MITX.
  • Can fit almost all types of cases
  • Supports more RAM than Mini-ITX
  • Not suitable for PCs with multiple graphics cards.
  • Less over-clocking due to limitations of the cooling system.
  • The interior of the case is limited.


Electrically and mechanically compatible standard with micro ATX form factor. The mini-ITX form factor has a small size of (17 x 17 cm). With a Mini-ITX motherboard, you can create your own small machine that doesn’t look like a PC at first glance. This standard was designed for embedded devices. Recently, the sales of individual motherboards have increased, and it is becoming possible to make your own by combining with various CPUs.

Self-made using a Mini-ITX motherboard and a small case is very popular as a sub-machine application. However, recent Mini-ITX motherboards are not so strict in CPU restrictions, and more products are equipped with PCI Express x16 slots, so if you feel like it, middle range class PCs for 3D games are also possible. It is no exaggeration to say that Mini-ITX has a romance that inspires the hearts of self-made users, whether it is aiming for a low-cost sub-machine or making an ultra-compact 3D game machine.

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