Micro ATX Motherboard

High performance Micro ATX Motherboards

High performance Micro ATX motherboards (244 x 244 mm) support a wide range of computing capacities, rich I/Os and expansion slots. The Micro ATX motherboards are suited for space and cost sensitive applications yet maximising computing power, storage and expansion.

Tekdis UK offers a wide selection of Micro-ATX Single Board Computers, industrial computing and can build complete solutions to suit customer requirements. We have the experience and know how to select the correct storage, communication modules (LTE, WLAN) and can license/image with operating systems prior to shipping.

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  1. IMB-9454G

    micro-ATX Motherboard with Intel Core 2 Duo, Pentium® 4/ Pentium® D/ Celeron® D FSB 533/800/1066MHz CPU, VGA, Dual PCIe GbE, SATA II, USB 2.0, 6 COM, & Audio

  2. IMB-H810-i2

    microATX motherboard supports 22nm LGA1150 Intel® Core™ i7/i5/i3, Pentium®, Celeron® CPU per Intel® H81

  3. IMBA-Q170-i2

    ATX motherboard supports 14nm LGA1151 Intel CPU Intel Q170

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Difference Between ATX and Micro ATX

The fundamental difference between ATX and micro ATX is the shape and size of the motherboards.

The ATX board is rectangular in shape, offers five expansion slots and has dimensions of 305mm X 244mm. Whereas the Micro ATX, is a square-shaped circuit board and provides only three expansion slots, with dimensions of 61mm X 244mm.


Micro-ATX vs Mini-ITX vs ATX: A Size Comparison

The basic difference that sets apart the three motherboards from each other is their dimensions.

Motherboards Micro-ATX Mini-ITX ATX
Dimensions 9.6″ x 9.6″ 6.7″ x 6.7″ 12.0″ x 9.6″


The Micro ATX motherboard has a similar width to that of the standard ATX motherboard. However, ATX is slightly bigger, which gives it the advantage of featuring more PCIe lanes in the chassis. This height advantage makes them apt for multi-GPU setups and users who wish to use multiple PCIe devices.

Conversely, the Mini-ITX motherboard is smallest in height and width among all of them. They are typically designed for low-cost computer systems that can be used in set-top boxes, automobiles, and network devices. They generally offer only a single PCIe lane and are more compatible with small form-factor cases.

The distinct sizes of these motherboards determine which PC case they will best fit in. Besides, a Mini-ITX or Micro ATX can be used in a standard ATX case, however the opposite is not true. An ATX motherboard cannot be put into the case of Mini-ITX or Micro-ATX.


The Pros and Cons of Each Form-Factor

Micro-ATX, Mini-ITX, and ATX, all three of them are designed for different applications, and each one of them has their pros and cons. Let us take a look at them in the table below:





  • It is cheaper.
  • Best-suited for single-GPU PC builds.
  • More Ram capacity than Mini-ITX.
  • Easy fitting in most computer cases.
  • Not ideal for multi-GPU setups.
  • Does not provide the best aesthetics.


  • Ideal for small cases.
  • Aesthetically more appealing than Micro-ATX.
  • Some models support single input voltage
  • Price higher than Micro-ATX.
  • Lacks in multi-GPU setups.
  • Limited expansion
  • Offers a maximum of two RAM slots.


  • RAM capacity is higher.
  • More number of PCIe lanes.
  • Large scope for expansion.
  • Suitable for aesthetic purposes.
  • Cannot be used with smaller cases.
  • Price is higher.


How to Identify the Form Factor of a Motherboard by Size?

Some of the major form factors of a motherboard are:

  1. ATX form factor
  2. Micro-ATX form factor
  3. Mini-ITX form factor
  4. Extended ATX (EATX) form factor


The best way to identify these form factors is by their dimensions.

Dimensions 12 inches by 9.6 inches 9.6 by 9.6 inches 6.7 by 6.7 inches 2 inches by 13 inches


ATX Motherboard

ATX motherboard, also known as the standard ATX, is a highly prominent motherboard that is directly attached to the board. It offers some beneficial features that makes it the best in class, such as:

  • The BIOS available on the board helps consistently monitor the CPU temperature and voltage and adjust the speed of cooling fans to prevent the board from overheating.
  • The allocation of CPU and memory slots is done to allow extra room for ventilation and easier installation.
  • The motherboard controls the power supply and has the feature to turn it on remotely through an internet connection.
  • The ATX motherboard comes with a pre-attached stacked I/O (input/output) connector panel.
  • The sockets on the board are kept at a far distance from the expansion slots, enabling easier installation of larger expansion boards.
  • The motherboard can be simply rebooted by pressing the power button of the computer for five seconds.


EATX Motherboard

The EATX Motherboard is basically an extended version of the ATX motherboard. It consists of more PCI expansion slots and can fit in more graphics cards and memory slots. These are typically designed for high-end workstations, busy servers, and are ideal for people who love playing heavy video games. They take up a lot of physical space and have a very high price.

Mini-ITX Motherboard

The Mini-ITX Motherboard is the smallest motherboard available in the market and is designed for devices that are compact in size, such as automobiles, set-top boxes, etc. The motherboard has only a single PCI expansion slot, and it lacks the ability to connect multiple devices. Apart from its small size, the motherboard has a reasonably low price.

Micro-ATX Motherboard

The Micro-ATX Motherboard is quite similar to that of a standard ATX motherboard. The major difference is its height which is 2.4 inches shorter than ATX. It has a lower capability to carry multiple graphics cards and GPUs. Hence, it is not suited for video editing or works that require multiple monitors.

The PCI expansion slots available in the motherboard are also limited, so connecting several devices such as network cards and audio cards is more difficult. The space of a Micro-ATX Motherboard is smaller than the ATX but is larger than the Mini-ITX.


Top ATX and Micro ATX Motherboards

The most dominating ATX and Micro ATX motherboards are:


It is an ATX motherboard that features an Intelligent Platform Management Interface. It enables the users to maximize the IT resources, which helps manage multiple systems and save a significant amount of time.


  • LGA1151 6th generation Intel CoreTM i7/i5/i3, Celeron and Pentium processor
  • Support the triple display with HDMI, DVI, and VGA
  • Dual-channel DDR4 2133 MHz
  • IEI One Key Recovery solution
  • Support USB 3.0, SATA 6Gb/s, and PCI Express Gen3



It is a Micro ATX motherboard that supports 22nm LGA1150 Intel Core i7/i5/i3, Pentium, Celeron CPU per Intel H81. The board consists of four PCIe expansion slots and is ideal for standard computer systems.


  • Dual-channel DDR3 1333/1600 MHz support up to 16 GB
  • Supports legacy PCI 32-bit 33/66 MHz
  • Intel HD Graphics technology for high-performance graphics and media processing
  • Ten COM ports, USB 3.0, and SATA supported
  • IEI jumper-less function


MANO522 is powered by the LGA1151 socket 9th/8th generation Intel® Core™ i7/i5/i3 processor (code name: Coffee Lake) with the Intel® H310 chipset. With a small form factor of 17 x 17 cm, this industrial motherboard is an excellent choice for space-constrained environments. Its high computing power, 4K-ready and high expandability make it well-suited for intelligent transportation, factory automation, self-service kiosks, infotainment, and digital signage. This industrial motherboard is integrated with Intel® integrated Gfx graphics engine with UHD 4K resolution and provides rapid video acceleration and dual-view capability through the VGA, HDMI and LVDS. To ensure reliable operation, the MANO522 has a wide operating temperature range of 0°C to 60°C. It also supports watchdog timer and hardware monitoring, and offers Trusted Platform Module 2.0 (TPM 2.0) for optimum security.


  • LGA1151 8th gen Intel® Core™ i7/i5/i3 processor
  • Intel® H310 chipset
  • 2 DDR4 SO-DIMM for up to 64GB of memory
  • 4 USB 3.2 Gen 1 and 2 USB 2.0
  • 6 COM ports
  • 2 SATA-600 and 1 mSATA
  • PCIe x16 and M.2 Key E


To find out more about the solutions we offer, please contact our team directly.