What Are Different Types of Motherboards?

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Motherboards come in various sizes and configurations to accommodate different computer cases and meet specific user needs. The form factor of a motherboard determines its physical size, layout, and compatibility with various components. In this article, we’ll explore the different types of motherboards commonly used in the computer industry and their respective characteristics.

What Are Different Types of Motherboards?

ATX (Advanced Technology Extended)

ATX is one of the most prevalent form factors for desktop computers. It offers a standardized size and layout, making it compatible with a wide range of computer cases. ATX motherboards typically come with multiple expansion slots, allowing users to add additional components like graphics cards, sound cards, and network cards. They offer various connectivity options and support features suitable for gaming, content creation, and general computing.

Micro-ATX (mATX)

Micro-ATX is a smaller form factor compared to ATX, designed to fit into compact computer cases. Despite its smaller size, Micro-ATX motherboards often retain most of the features found in standard ATX boards. They typically have fewer expansion slots and RAM slots but are an excellent choice for users who want a more compact and budget-friendly system without sacrificing too much functionality.


Mini-ITX is the smallest of the common form factors and is ideal for building ultra-compact and space-efficient computers. These motherboards are suitable for small form factor (SFF) cases and home theater PCs (HTPCs). Due to their size, Mini-ITX motherboards usually have limited expansion slots and fewer RAM slots. They are popular among users looking to build a portable, energy-efficient, and silent system.

Extended ATX (E-ATX)

Extended ATX, also known as E-ATX, is a larger form factor than standard ATX. E-ATX motherboards offer additional space for more expansion slots, RAM slots, and extra features. They are commonly used in high-end gaming and workstation builds that require extensive customization and multiple graphics card configurations. However, due to their larger size, E-ATX motherboards may not fit in all computer cases, so compatibility should be verified before purchasing.

Mini-DTX and Nano-ITX

Mini-DTX and Nano-ITX are less common form factors, mainly used in specialized applications. Mini-DTX is a larger version of Mini-ITX, offering slightly more expansion options, while Nano-ITX is even smaller than Mini-ITX, suitable for ultra-compact and embedded systems.


Flex-ATX is designed for small and slim computer cases, often used in low-profile desktops and compact media centers. These motherboards prioritize space efficiency and are well-suited for limited-space environments.

Micro-STX (mSTX)

Micro-STX is a relatively new form factor that aims to strike a balance between the small size of Mini-ITX and the upgradeability of Micro-ATX. It allows for modular components and is suitable for users who want a compact system with some expandability options.


In conclusion, motherboards come in various form factors to accommodate different needs and system configurations. From the standard ATX and compact Micro-ATX to the tiny Mini-ITX and specialized E-ATX, each form factor offers unique advantages for building computers of various sizes and capabilities. When choosing a motherboard, consider the form factor that best fits your computer case, the components you plan to use, and the specific tasks you intend to perform on your system.


What is a motherboard?

A motherboard is a main circuit board in a computer that serves as the central hub connecting all the hardware components, such as the CPU, RAM, storage devices, and expansion cards.

What are the different types of motherboard form factors?

There are several motherboard form factors, including ATX, Micro-ATX, Mini-ITX, Extended ATX (E-ATX), DTX, Pico-ITX, BTX, and custom form factors.

What is the most common motherboard form factor?

The ATX form factor is the most common for desktop computers due to its standardized size and compatibility with various components.

What factors should I consider when choosing a motherboard?

When choosing a motherboard, consider the form factor, system size, expansion needs, power delivery, cooling options, budget, CPU compatibility, and future upgradability.

Can I use a smaller motherboard form factor in a larger computer case?

Yes, you can use a smaller motherboard form factor in a larger computer case. However, it may leave empty space and may not utilize the case’s full potential for expansion.

Sarah Jones
Sarah Jones

Meet Sarah Jones, a tech-savvy editor with a passion for writing about the latest technology trends. She has a keen eye for detail and a talent for simplifying complex technical concepts for a wider audience. Sarah is dedicated to staying up-to-date with the latest advancements in the tech industry, and her love for technology is evident in her writing. She is committed to producing high-quality content that is informative, engaging, and accessible to all.